56446957 has 4 divisors (see below), whose sum is σ = 64510816. Its totient is φ = 48383100.

The previous prime is 56446921. The next prime is 56446979. The reversal of 56446957 is 75964465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75964465 = 5 ⋅15192893.

It is a cyclic number.

It is not a de Polignac number, because 56446957 - 2¹¹ = 56444909 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 (56446997) 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, 4031919 + ... + 4031932.

It is an arithmetic number, because the mean of its divisors is an integer number (16127704).

Almost surely, 2^56446957 is an apocalyptic number.

It is an amenable number.

56446957 is a deficient number, since it is larger than the sum of its proper divisors (8063859).

56446957 is an equidigital number, since it uses as much as digits as its factorization.

56446957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063858.

The product of its digits is 907200, while the sum is 46.

The square root of 56446957 is about 7513.1189928019. The cubic root of 56446957 is about 383.6013952794.

The spelling of 56446957 in words is "fifty-six million, four hundred forty-six thousand, nine hundred fifty-seven".