56436347 has 4 divisors (see below), whose sum is σ = 61566936. Its totient is φ = 51305760.

The previous prime is 56436323. The next prime is 56436353. The reversal of 56436347 is 74363465.

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

It is not a de Polignac number, because 56436347 - 2²⁰ = 55387771 is a prime.

It is a super-2 number, since 2×56436347² = 6370122525408818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56436347.

It is not an unprimeable number, because it can be changed into a prime (56436547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565278 + ... + 2565299.

It is an arithmetic number, because the mean of its divisors is an integer number (15391734).

Almost surely, 2^56436347 is an apocalyptic number.

56436347 is a deficient number, since it is larger than the sum of its proper divisors (5130589).

56436347 is a wasteful number, since it uses less digits than its factorization.

56436347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130588.

The product of its digits is 181440, while the sum is 38.

The square root of 56436347 is about 7512.4128613915. The cubic root of 56436347 is about 383.5773593464.

The spelling of 56436347 in words is "fifty-six million, four hundred thirty-six thousand, three hundred forty-seven".