55672520 has 32 divisors (see below), whose sum is σ = 127033920. Its totient is φ = 21954240.

The previous prime is 55672483. The next prime is 55672537. The reversal of 55672520 is 2527655.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6962 + ... + 12641.

It is an arithmetic number, because the mean of its divisors is an integer number (3969810).

Almost surely, 2^55672520 is an apocalyptic number.

It is an amenable number.

55672520 is an abundant number, since it is smaller than the sum of its proper divisors (71361400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55672520 is a wasteful number, since it uses less digits than its factorization.

55672520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19685 (or 19681 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 55672520 is about 7461.4020130268. The cubic root of 55672520 is about 381.8390082091.

The spelling of 55672520 in words is "fifty-five million, six hundred seventy-two thousand, five hundred twenty".