56404967 has 4 divisors (see below), whose sum is σ = 56904240. Its totient is φ = 55905696.

The previous prime is 56404961. The next prime is 56404981. The reversal of 56404967 is 76940465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56404967 - 2²⁴ = 39627751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56404961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249467 + ... + 249692.

It is an arithmetic number, because the mean of its divisors is an integer number (14226060).

Almost surely, 2^56404967 is an apocalyptic number.

56404967 is a deficient number, since it is larger than the sum of its proper divisors (499273).

56404967 is a wasteful number, since it uses less digits than its factorization.

56404967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499272.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 56404967 is about 7510.3240276302. The cubic root of 56404967 is about 383.5062533438.

The spelling of 56404967 in words is "fifty-six million, four hundred four thousand, nine hundred sixty-seven".