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55388370073685 = 5111693594838319
BaseRepresentation
bin11001001100000000111000…
…00111110111100001010101
321021010002001202002021212012
430212000130013313201111
524224440340214324220
6313445022124234005
714444451305351465
oct1446003407674125
9237102052067765
1055388370073685
1116715091a311a0
12626677909b905
1324ba140854a6c
14d96b50749ba5
15660ba2c5aac5
hex32601c1f7855

55388370073685 has 16 divisors (see below), whose sum is σ = 72551240213760. Its totient is φ = 40258657362240.

The previous prime is 55388370073657. The next prime is 55388370073697. The reversal of 55388370073685 is 58637007388355.

It is not a de Polignac number, because 55388370073685 - 28 = 55388370073429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297326045 + ... + 297512274.

It is an arithmetic number, because the mean of its divisors is an integer number (4534452513360).

Almost surely, 255388370073685 is an apocalyptic number.

55388370073685 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55388370073685 is a deficient number, since it is larger than the sum of its proper divisors (17162870140075).

55388370073685 is a wasteful number, since it uses less digits than its factorization.

55388370073685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594840028.

The product of its (nonzero) digits is 508032000, while the sum is 68.

The spelling of 55388370073685 in words is "fifty-five trillion, three hundred eighty-eight billion, three hundred seventy million, seventy-three thousand, six hundred eighty-five".

Divisors: 1 5 11 55 1693 8465 18623 93115 594838319 2974191595 6543221509 32716107545 1007061274067 5035306370335 11077674014737 55388370073685