57248790 has 32 divisors (see below), whose sum is σ = 139284576. Its totient is φ = 15056640.

The previous prime is 57248761. The next prime is 57248801. The reversal of 57248790 is 9784275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10881 + ... + 15260.

It is an arithmetic number, because the mean of its divisors is an integer number (4352643).

Almost surely, 2^57248790 is an apocalyptic number.

57248790 is an abundant number, since it is smaller than the sum of its proper divisors (82035786).

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

57248790 is a wasteful number, since it uses less digits than its factorization.

57248790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26224.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 57248790 is about 7566.2930157376. The cubic root of 57248790 is about 385.4092236141.

The spelling of 57248790 in words is "fifty-seven million, two hundred forty-eight thousand, seven hundred ninety".