56623153 has 2 divisors, whose sum is σ = 56623154. Its totient is φ = 56623152.

The previous prime is 56623093. The next prime is 56623159. The reversal of 56623153 is 35132665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47997184 + 8625969 = 6928^2 + 2937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56623153 is a prime.

It is a super-2 number, since 2×56623153² = 6412362911322818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56623159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28311576 + 28311577.

It is an arithmetic number, because the mean of its divisors is an integer number (28311577).

Almost surely, 2^56623153 is an apocalyptic number.

It is an amenable number.

56623153 is a deficient number, since it is larger than the sum of its proper divisors (1).

56623153 is an equidigital number, since it uses as much as digits as its factorization.

56623153 is an odious number, because the sum of its binary digits is odd.

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

The square root of 56623153 is about 7524.8357457156. The cubic root of 56623153 is about 384.0001107675. Note that the first 3 decimals are identical.

The spelling of 56623153 in words is "fifty-six million, six hundred twenty-three thousand, one hundred fifty-three".