53574721 has 2 divisors, whose sum is σ = 53574722. Its totient is φ = 53574720.

The previous prime is 53574691. The next prime is 53574739. The reversal of 53574721 is 12747535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27196225 + 26378496 = 5215^2 + 5136^2 .

It is a cyclic number.

It is not a de Polignac number, because 53574721 - 2²⁵ = 20020289 is a prime.

It is not a weakly prime, because it can be changed into another prime (53574761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26787360 + 26787361.

It is an arithmetic number, because the mean of its divisors is an integer number (26787361).

Almost surely, 2^53574721 is an apocalyptic number.

It is an amenable number.

53574721 is a deficient number, since it is larger than the sum of its proper divisors (1).

53574721 is an equidigital number, since it uses as much as digits as its factorization.

53574721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 34.

The square root of 53574721 is about 7319.4754593482. The cubic root of 53574721 is about 376.9814431738.

The spelling of 53574721 in words is "fifty-three million, five hundred seventy-four thousand, seven hundred twenty-one".