253071034520 has 32 divisors (see below), whose sum is σ = 569505096720. Its totient is φ = 101211477120.

The previous prime is 253071034519. The next prime is 253071034549. The reversal of 253071034520 is 25430170352.

It is a congruent number.

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, 285827 + ... + 766706.

Almost surely, 2^253071034520 is an apocalyptic number.

253071034520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253071034520 is an abundant number, since it is smaller than the sum of its proper divisors (316434062200).

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

253071034520 is a wasteful number, since it uses less digits than its factorization.

253071034520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058555 (or 1058551 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The spelling of 253071034520 in words is "two hundred fifty-three billion, seventy-one million, thirty-four thousand, five hundred twenty".