253521054 has 24 divisors (see below), whose sum is σ = 550407312. Its totient is φ = 84336000.

The previous prime is 253521041. The next prime is 253521061. The reversal of 253521054 is 450125352.

It is a happy number.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4947 + ... + 23054.

It is an arithmetic number, because the mean of its divisors is an integer number (22933638).

Almost surely, 2^253521054 is an apocalyptic number.

253521054 is an abundant number, since it is smaller than the sum of its proper divisors (296886258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253521054 is a wasteful number, since it uses less digits than its factorization.

253521054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28512 (or 28509 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 253521054 is about 15922.3444881713. The cubic root of 253521054 is about 632.9042479246.

The spelling of 253521054 in words is "two hundred fifty-three million, five hundred twenty-one thousand, fifty-four".