53593921 has 2 divisors, whose sum is σ = 53593922. Its totient is φ = 53593920.

The previous prime is 53593909. The next prime is 53593949. The reversal of 53593921 is 12939535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50566321 + 3027600 = 7111^2 + 1740^2 .

It is a cyclic number.

It is not a de Polignac number, because 53593921 - 2⁹ = 53593409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53593901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26796960 + 26796961.

It is an arithmetic number, because the mean of its divisors is an integer number (26796961).

Almost surely, 2^53593921 is an apocalyptic number.

It is an amenable number.

53593921 is a deficient number, since it is larger than the sum of its proper divisors (1).

53593921 is an equidigital number, since it uses as much as digits as its factorization.

53593921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36450, while the sum is 37.

The square root of 53593921 is about 7320.7869112548. The cubic root of 53593921 is about 377.0264717438.

The spelling of 53593921 in words is "fifty-three million, five hundred ninety-three thousand, nine hundred twenty-one".