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54155838925 = 5259101363523
BaseRepresentation
bin110010011011111100…
…001000010111001101
312011210012202122220001
4302123330020113031
51341402343321200
640513455324301
73625014015136
oct623374102715
9164705678801
1054155838925
1120a70617381
12a5b4820691
135150a55c06
14289a64cc8d
15161e64e76a
hexc9bf085cd

54155838925 has 24 divisors (see below), whose sum is σ = 68967773280. Its totient is φ = 42168552000.

The previous prime is 54155838907. The next prime is 54155838929. The reversal of 54155838925 is 52983855145.

It is not a de Polignac number, because 54155838925 - 211 = 54155836877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54155838929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32787 + ... + 330736.

It is an arithmetic number, because the mean of its divisors is an integer number (2873657220).

Almost surely, 254155838925 is an apocalyptic number.

It is an amenable number.

54155838925 is a deficient number, since it is larger than the sum of its proper divisors (14811934355).

54155838925 is a wasteful number, since it uses less digits than its factorization.

54155838925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363693 (or 363688 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 55.

The spelling of 54155838925 in words is "fifty-four billion, one hundred fifty-five million, eight hundred thirty-eight thousand, nine hundred twenty-five".

Divisors: 1 5 25 59 101 295 505 1475 2525 5959 29795 148975 363523 1817615 9088075 21447857 36715823 107239285 183579115 536196425 917895575 2166233557 10831167785 54155838925