56157623 has 2 divisors, whose sum is σ = 56157624. Its totient is φ = 56157622.

The previous prime is 56157617. The next prime is 56157631. The reversal of 56157623 is 32675165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56157623 - 2¹⁰ = 56156599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56157683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28078811 + 28078812.

It is an arithmetic number, because the mean of its divisors is an integer number (28078812).

Almost surely, 2^56157623 is an apocalyptic number.

56157623 is a deficient number, since it is larger than the sum of its proper divisors (1).

56157623 is an equidigital number, since it uses as much as digits as its factorization.

56157623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 56157623 is about 7493.8390028076. The cubic root of 56157623 is about 382.9448550018.

The spelling of 56157623 in words is "fifty-six million, one hundred fifty-seven thousand, six hundred twenty-three".