56735947 has 4 divisors (see below), whose sum is σ = 57150216. Its totient is φ = 56321680.

The previous prime is 56735941. The next prime is 56735981. The reversal of 56735947 is 74953765.

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 56735947 - 2²³ = 48347339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56735897 and 56735906.

It is not an unprimeable number, because it can be changed into a prime (56735941) 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, 206929 + ... + 207202.

It is an arithmetic number, because the mean of its divisors is an integer number (14287554).

Almost surely, 2^56735947 is an apocalyptic number.

56735947 is a deficient number, since it is larger than the sum of its proper divisors (414269).

56735947 is a wasteful number, since it uses less digits than its factorization.

56735947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414268.

The product of its digits is 793800, while the sum is 46.

The square root of 56735947 is about 7532.3267985397. The cubic root of 56735947 is about 384.2549192574.

The spelling of 56735947 in words is "fifty-six million, seven hundred thirty-five thousand, nine hundred forty-seven".