56390761 has 8 divisors (see below), whose sum is σ = 66669120. Its totient is φ = 46668048.

The previous prime is 56390743. The next prime is 56390783. The reversal of 56390761 is 16709365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56390761 - 2⁹ = 56390249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56390761.

It is not an unprimeable number, because it can be changed into a prime (56393761) 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, 138691 + ... + 139096.

It is an arithmetic number, because the mean of its divisors is an integer number (8333640).

Almost surely, 2^56390761 is an apocalyptic number.

It is an amenable number.

56390761 is a deficient number, since it is larger than the sum of its proper divisors (10278359).

56390761 is a wasteful number, since it uses less digits than its factorization.

56390761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277823.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 56390761 is about 7509.3782032869. The cubic root of 56390761 is about 383.4740543634.

The spelling of 56390761 in words is "fifty-six million, three hundred ninety thousand, seven hundred sixty-one".