56155453 has 2 divisors, whose sum is σ = 56155454. Its totient is φ = 56155452.

The previous prime is 56155439. The next prime is 56155457. The reversal of 56155453 is 35455165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56145049 + 10404 = 7493^2 + 102^2 .

It is a cyclic number.

It is not a de Polignac number, because 56155453 - 2²⁵ = 22601021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56155457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28077726 + 28077727.

It is an arithmetic number, because the mean of its divisors is an integer number (28077727).

Almost surely, 2^56155453 is an apocalyptic number.

It is an amenable number.

56155453 is a deficient number, since it is larger than the sum of its proper divisors (1).

56155453 is an equidigital number, since it uses as much as digits as its factorization.

56155453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 34.

The square root of 56155453 is about 7493.6942158057. The cubic root of 56155453 is about 382.9399224507.

The spelling of 56155453 in words is "fifty-six million, one hundred fifty-five thousand, four hundred fifty-three".