55511625 has 64 divisors (see below), whose sum is σ = 101687040. Its totient is φ = 26726400.

The previous prime is 55511623. The next prime is 55511639. The reversal of 55511625 is 52611555.

It is not a de Polignac number, because 55511625 - 2¹ = 55511623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55511592 and 55511601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55511623) 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, 287529 + ... + 287721.

It is an arithmetic number, because the mean of its divisors is an integer number (1588860).

Almost surely, 2^55511625 is an apocalyptic number.

It is an amenable number.

55511625 is a deficient number, since it is larger than the sum of its proper divisors (46175415).

55511625 is a wasteful number, since it uses less digits than its factorization.

55511625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 273 counting only the distinct ones).

The product of its digits is 7500, while the sum is 30.

The square root of 55511625 is about 7450.6123909381. The cubic root of 55511625 is about 381.4708117974.

The spelling of 55511625 in words is "fifty-five million, five hundred eleven thousand, six hundred twenty-five".