55315760636725 has 24 divisors (see below), whose sum is σ = 68773255640640. Its totient is φ = 44135418768000.

The previous prime is 55315760636671. The next prime is 55315760636729. The reversal of 55315760636725 is 52763606751355.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-55315760636725 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55315760636729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49870920 + ... + 50968030.

It is an arithmetic number, because the mean of its divisors is an integer number (2865552318360).

Almost surely, 2^{55315760636725} is an apocalyptic number.

It is an amenable number.

55315760636725 is a deficient number, since it is larger than the sum of its proper divisors (13457495003915).

55315760636725 is a wasteful number, since it uses less digits than its factorization.

55315760636725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102461 (or 1102456 counting only the distinct ones).

The product of its (nonzero) digits is 119070000, while the sum is 61.

The spelling of 55315760636725 in words is "fifty-five trillion, three hundred fifteen billion, seven hundred sixty million, six hundred thirty-six thousand, seven hundred twenty-five".