55385011511625 has 64 divisors (see below), whose sum is σ = 102717762750720. Its totient is φ = 26337887769600.

The previous prime is 55385011511623. The next prime is 55385011511651. The reversal of 55385011511625 is 52611511058355.

It is not a de Polignac number, because 55385011511625 - 2¹ = 55385011511623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55385011511623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 228506374 + ... + 228748623.

It is an arithmetic number, because the mean of its divisors is an integer number (1604965042980).

Almost surely, 2^{55385011511625} is an apocalyptic number.

It is an amenable number.

55385011511625 is a deficient number, since it is larger than the sum of its proper divisors (47332751239095).

55385011511625 is a wasteful number, since it uses less digits than its factorization.

55385011511625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457255051 (or 457255041 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 48.

The spelling of 55385011511625 in words is "fifty-five trillion, three hundred eighty-five billion, eleven million, five hundred eleven thousand, six hundred twenty-five".