56297390 has 16 divisors (see below), whose sum is σ = 101472480. Its totient is φ = 22488480.

The previous prime is 56297377. The next prime is 56297407. The reversal of 56297390 is 9379265.

It is a super-2 number, since 2×56297390² = 6338792241624200, which contains 22 as substring.

It is a congruent number.

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, 4895 + ... + 11685.

It is an arithmetic number, because the mean of its divisors is an integer number (6342030).

Almost surely, 2^56297390 is an apocalyptic number.

56297390 is a deficient number, since it is larger than the sum of its proper divisors (45175090).

56297390 is a wasteful number, since it uses less digits than its factorization.

56297390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 56297390 is about 7503.1586681877. The cubic root of 56297390 is about 383.2622871903.

The spelling of 56297390 in words is "fifty-six million, two hundred ninety-seven thousand, three hundred ninety".