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57155123756525 = 52172112657239879
BaseRepresentation
bin11001111111011011101101…
…10110010011110111101101
321111100222100211211112222212
430333231312312103313231
524442412143140202100
6321320411255220205
715016215151025264
oct1477556666236755
9244328324745885
1057155123756525
1117236396369703
1264b1067377665
1325b7921c9a342
1410184738a95db
15691b08b8d635
hex33fb76d93ded

57155123756525 has 48 divisors (see below), whose sum is σ = 75425652627840. Its totient is φ = 42814193049600.

The previous prime is 57155123756483. The next prime is 57155123756573. The reversal of 57155123756525 is 52565732155175.

It is not a de Polignac number, because 57155123756525 - 26 = 57155123756461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238146536 + ... + 238386414.

It is an arithmetic number, because the mean of its divisors is an integer number (1571367763080).

Almost surely, 257155123756525 is an apocalyptic number.

It is an amenable number.

57155123756525 is a deficient number, since it is larger than the sum of its proper divisors (18270528871315).

57155123756525 is a wasteful number, since it uses less digits than its factorization.

57155123756525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242774 (or 242769 counting only the distinct ones).

The product of its digits is 55125000, while the sum is 59.

The spelling of 57155123756525 in words is "fifty-seven trillion, one hundred fifty-five billion, one hundred twenty-three million, seven hundred fifty-six thousand, five hundred twenty-five".

Divisors: 1 5 17 25 85 211 425 1055 2657 3587 5275 13285 17935 45169 66425 89675 225845 239879 560627 1129225 1199395 2803135 4077943 5996975 9530659 14015675 20389715 47653295 50614469 101948575 238266475 253072345 637358503 860445973 1265361725 3186792515 4302229865 10835094551 15933962575 21511149325 54175472755 134482644133 270877363775 672413220665 2286204950261 3362066103325 11431024751305 57155123756525