55905738625 has 16 divisors (see below), whose sum is σ = 76113123840. Its totient is φ = 40658718000.

The previous prime is 55905738619. The next prime is 55905738631. The reversal of 55905738625 is 52683750955.

55905738625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55905738619) and next prime (55905738631).

It is not a de Polignac number, because 55905738625 - 2³ = 55905738617 is a prime.

It is a super-2 number, since 2×55905738625² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 20327985 + ... + 20330734.

It is an arithmetic number, because the mean of its divisors is an integer number (4757070240).

Almost surely, 2^55905738625 is an apocalyptic number.

55905738625 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55905738625 is a deficient number, since it is larger than the sum of its proper divisors (20207385215).

55905738625 is a wasteful number, since it uses less digits than its factorization.

55905738625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40658745 (or 40658735 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 55.

The spelling of 55905738625 in words is "fifty-five billion, nine hundred five million, seven hundred thirty-eight thousand, six hundred twenty-five".