56455431 has 16 divisors (see below), whose sum is σ = 79685760. Its totient is φ = 35491680.

The previous prime is 56455423. The next prime is 56455457. The reversal of 56455431 is 13455465.

It is not a de Polignac number, because 56455431 - 2³ = 56455423 is a prime.

It is a super-2 number, since 2×56455431² = 6374431378791522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56455392 and 56455401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56455031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3805 + ... + 11286.

It is an arithmetic number, because the mean of its divisors is an integer number (4980360).

Almost surely, 2^56455431 is an apocalyptic number.

56455431 is a deficient number, since it is larger than the sum of its proper divisors (23230329).

56455431 is a wasteful number, since it uses less digits than its factorization.

56455431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15166.

The product of its digits is 36000, while the sum is 33.

The square root of 56455431 is about 7513.6829185161. The cubic root of 56455431 is about 383.6205901469.

The spelling of 56455431 in words is "fifty-six million, four hundred fifty-five thousand, four hundred thirty-one".