55725192 has 32 divisors (see below), whose sum is σ = 154792800. Its totient is φ = 18574992.

The previous prime is 55725181. The next prime is 55725217. The reversal of 55725192 is 29152755.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 128778 + ... + 129209.

It is an arithmetic number, because the mean of its divisors is an integer number (4837275).

Almost surely, 2^55725192 is an apocalyptic number.

It is an amenable number.

55725192 is an abundant number, since it is smaller than the sum of its proper divisors (99067608).

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

55725192 is a wasteful number, since it uses less digits than its factorization.

55725192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258002 (or 257992 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 55725192 is about 7464.9308101281. The cubic root of 55725192 is about 381.9593900709.

The spelling of 55725192 in words is "fifty-five million, seven hundred twenty-five thousand, one hundred ninety-two".