56550451 has 2 divisors, whose sum is σ = 56550452. Its totient is φ = 56550450.

The previous prime is 56550443. The next prime is 56550469. The reversal of 56550451 is 15405565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56550451 - 2³ = 56550443 is a prime.

It is not a weakly prime, because it can be changed into another prime (56550401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28275225 + 28275226.

It is an arithmetic number, because the mean of its divisors is an integer number (28275226).

Almost surely, 2^56550451 is an apocalyptic number.

56550451 is a deficient number, since it is larger than the sum of its proper divisors (1).

56550451 is an equidigital number, since it uses as much as digits as its factorization.

56550451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 56550451 is about 7520.0033909567. The cubic root of 56550451 is about 383.8356931428.

The spelling of 56550451 in words is "fifty-six million, five hundred fifty thousand, four hundred fifty-one".