253003054240520 has 32 divisors (see below), whose sum is σ = 579997567744920. Its totient is φ = 99291764682240.

The previous prime is 253003054240513. The next prime is 253003054240543. The reversal of 253003054240520 is 25042450300352.

It can be written as a sum of positive squares in 4 ways, for example, as 142819278292804 + 110183775947716 = 11950702^2 + 10496846^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59670529541 + ... + 59670533780.

Almost surely, 2^{253003054240520} is an apocalyptic number.

253003054240520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253003054240520 is an abundant number, since it is smaller than the sum of its proper divisors (326994513504400).

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

253003054240520 is a wasteful number, since it uses less digits than its factorization.

253003054240520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119341063385 (or 119341063381 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 253003054240520 in words is "two hundred fifty-three trillion, three billion, fifty-four million, two hundred forty thousand, five hundred twenty".