252502803027840 has 128 divisors (see below), whose sum is σ = 804884877436320. Its totient is φ = 67331387555840.

The previous prime is 252502803027799. The next prime is 252502803028037. The reversal of 252502803027840 is 48720308205252.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 252502803027840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45614752 + ... + 50849888.

Almost surely, 2^{252502803027840} is an apocalyptic number.

252502803027840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252502803027840 is an abundant number, since it is smaller than the sum of its proper divisors (552382074408480).

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

252502803027840 is a wasteful number, since it uses less digits than its factorization.

252502803027840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260280 (or 5260268 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 48.

The spelling of 252502803027840 in words is "two hundred fifty-two trillion, five hundred two billion, eight hundred three million, twenty-seven thousand, eight hundred forty".