253521260 has 24 divisors (see below), whose sum is σ = 542442096. Its totient is φ = 99494720.

The previous prime is 253521253. The next prime is 253521283. The reversal of 253521260 is 62125352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118526 + ... + 120645.

It is an arithmetic number, because the mean of its divisors is an integer number (22601754).

Almost surely, 2^253521260 is an apocalyptic number.

253521260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253521260 is an abundant number, since it is smaller than the sum of its proper divisors (288920836).

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

253521260 is a wasteful number, since it uses less digits than its factorization.

253521260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239233 (or 239231 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 253521260 is about 15922.3509570666. The cubic root of 253521260 is about 632.9044193479.

The spelling of 253521260 in words is "two hundred fifty-three million, five hundred twenty-one thousand, two hundred sixty".