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55502153157 = 3117181129209
BaseRepresentation
bin110011101100001011…
…111010010111000101
312022021001002111211010
4303230023322113011
51402132022400112
641255231432433
74003252342413
oct635413722705
9168231074733
1055502153157
11215a1578170
12a90b685719
135306958759
1429873882b3
15169c93c63c
hexcec2fa5c5

55502153157 has 32 divisors (see below), whose sum is σ = 81971205120. Its totient is φ = 33121872000.

The previous prime is 55502153137. The next prime is 55502153159. The reversal of 55502153157 is 75135120555.

It is not a de Polignac number, because 55502153157 - 210 = 55502152133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55502153159) 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, 1885569 + ... + 1914777.

It is an arithmetic number, because the mean of its divisors is an integer number (2561600160).

Almost surely, 255502153157 is an apocalyptic number.

It is an amenable number.

55502153157 is a deficient number, since it is larger than the sum of its proper divisors (26469051963).

55502153157 is a wasteful number, since it uses less digits than its factorization.

55502153157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30105.

The product of its (nonzero) digits is 131250, while the sum is 39.

The spelling of 55502153157 in words is "fifty-five billion, five hundred two million, one hundred fifty-three thousand, one hundred fifty-seven".

Divisors: 1 3 11 33 71 213 781 811 2343 2433 8921 26763 29209 57581 87627 172743 321299 633391 963897 1900173 2073839 6221517 22812229 23688499 68436687 71065497 260573489 781720467 1681883429 5045650287 18500717719 55502153157