56361553 has 2 divisors, whose sum is σ = 56361554. Its totient is φ = 56361552.

The previous prime is 56361541. The next prime is 56361577. The reversal of 56361553 is 35516365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30382144 + 25979409 = 5512^2 + 5097^2 .

It is a cyclic number.

It is not a de Polignac number, because 56361553 - 2²⁵ = 22807121 is a prime.

It is not a weakly prime, because it can be changed into another prime (56361533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28180776 + 28180777.

It is an arithmetic number, because the mean of its divisors is an integer number (28180777).

Almost surely, 2^56361553 is an apocalyptic number.

It is an amenable number.

56361553 is a deficient number, since it is larger than the sum of its proper divisors (1).

56361553 is an equidigital number, since it uses as much as digits as its factorization.

56361553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40500, while the sum is 34.

The square root of 56361553 is about 7507.4331831858. The cubic root of 56361553 is about 383.4078352149.

The spelling of 56361553 in words is "fifty-six million, three hundred sixty-one thousand, five hundred fifty-three".