56993390 has 16 divisors (see below), whose sum is σ = 102738240. Its totient is φ = 22764000.

The previous prime is 56993389. The next prime is 56993393. The reversal of 56993390 is 9339965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56993393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3716 + ... + 11304.

It is an arithmetic number, because the mean of its divisors is an integer number (6421140).

Almost surely, 2^56993390 is an apocalyptic number.

56993390 is a deficient number, since it is larger than the sum of its proper divisors (45744850).

56993390 is a wasteful number, since it uses less digits than its factorization.

56993390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8347.

The product of its (nonzero) digits is 196830, while the sum is 44.

The square root of 56993390 is about 7549.3966646349. The cubic root of 56993390 is about 384.8352361827.

The spelling of 56993390 in words is "fifty-six million, nine hundred ninety-three thousand, three hundred ninety".