252354552456440 has 64 divisors (see below), whose sum is σ = 648916267930560. Its totient is φ = 86520952627200.

The previous prime is 252354552456431. The next prime is 252354552456493. The reversal of 252354552456440 is 44654255453252.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 37673294 + ... + 43863266.

It is an arithmetic number, because the mean of its divisors is an integer number (10139316686415).

Almost surely, 2^{252354552456440} is an apocalyptic number.

252354552456440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252354552456440 is an abundant number, since it is smaller than the sum of its proper divisors (396561715474120).

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

252354552456440 is a wasteful number, since it uses less digits than its factorization.

252354552456440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6335592 (or 6335588 counting only the distinct ones).

The product of its (nonzero) digits is 115200000, while the sum is 56.

The spelling of 252354552456440 in words is "two hundred fifty-two trillion, three hundred fifty-four billion, five hundred fifty-two million, four hundred fifty-six thousand, four hundred forty".