56401353 has 10 divisors (see below), whose sum is σ = 84253994. Its totient is φ = 37600848.

The previous prime is 56401349. The next prime is 56401361. The reversal of 56401353 is 35310465.

56401353 is a `hidden beast` number, since 5 + 640 + 13 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53538489 + 2862864 = 7317^2 + 1692^2 .

It is not a de Polignac number, because 56401353 - 2² = 56401349 is a prime.

It is a super-2 number, since 2×56401353² = 6362225240461218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56401153) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 348076 + ... + 348237.

Almost surely, 2^56401353 is an apocalyptic number.

It is an amenable number.

56401353 is a deficient number, since it is larger than the sum of its proper divisors (27852641).

56401353 is an equidigital number, since it uses as much as digits as its factorization.

56401353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696325 (or 696316 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 56401353 is about 7510.0834216405. The cubic root of 56401353 is about 383.4980624504.

The spelling of 56401353 in words is "fifty-six million, four hundred one thousand, three hundred fifty-three".