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55756157541 = 3717517130203
BaseRepresentation
bin110011111011010100…
…110111001001100101
312022220202001021022220
4303323110313021211
51403142034020131
641340343542553
74012455343110
oct637324671145
9168822037286
1055756157541
1121711996447
12a98075aa59
1353474709c6
1429acdc7577
1516b4db2e96
hexcfb537265

55756157541 has 32 divisors (see below), whose sum is σ = 89979890688. Its totient is φ = 29979713280.

The previous prime is 55756157531. The next prime is 55756157543. The reversal of 55756157541 is 14575165755.

It is not a de Polignac number, because 55756157541 - 210 = 55756156517 is a prime.

It is a super-2 number, since 2×557561575412 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55756157543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1830946 + ... + 1861148.

It is an arithmetic number, because the mean of its divisors is an integer number (2811871584).

Almost surely, 255756157541 is an apocalyptic number.

55756157541 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

55756157541 is a deficient number, since it is larger than the sum of its proper divisors (34223733147).

55756157541 is a wasteful number, since it uses less digits than its factorization.

55756157541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35401.

The product of its digits is 3675000, while the sum is 51.

The spelling of 55756157541 in words is "fifty-five billion, seven hundred fifty-six million, one hundred fifty-seven thousand, five hundred forty-one".

Divisors: 1 3 7 17 21 51 119 357 5171 15513 30203 36197 87907 90609 108591 211421 263721 513451 615349 634263 1540353 1846047 3594157 10782471 156179713 468539139 1093257991 2655055121 3279773973 7965165363 18585385847 55756157541