56153623 has 2 divisors, whose sum is σ = 56153624. Its totient is φ = 56153622.

The previous prime is 56153609. The next prime is 56153627. The reversal of 56153623 is 32635165.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56153623 is a prime.

It is a super-2 number, since 2×56153623² = 6306458752052258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56153627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28076811 + 28076812.

It is an arithmetic number, because the mean of its divisors is an integer number (28076812).

Almost surely, 2^56153623 is an apocalyptic number.

56153623 is a deficient number, since it is larger than the sum of its proper divisors (1).

56153623 is an equidigital number, since it uses as much as digits as its factorization.

56153623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 31.

The square root of 56153623 is about 7493.5721121505. The cubic root of 56153623 is about 382.9357626429.

Adding to 56153623 its reverse (32635165), we get a palindrome (88788788).

The spelling of 56153623 in words is "fifty-six million, one hundred fifty-three thousand, six hundred twenty-three".