252537656028 has 24 divisors (see below), whose sum is σ = 673433749632. Its totient is φ = 72153615984.

The previous prime is 252537656027. The next prime is 252537656081. The reversal of 252537656028 is 820656735252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252537656023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1503200250 + ... + 1503200417.

It is an arithmetic number, because the mean of its divisors is an integer number (28059739568).

Almost surely, 2^252537656028 is an apocalyptic number.

252537656028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252537656028 is an abundant number, since it is smaller than the sum of its proper divisors (420896093604).

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

252537656028 is a wasteful number, since it uses less digits than its factorization.

252537656028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006400681 (or 3006400679 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 252537656028 in words is "two hundred fifty-two billion, five hundred thirty-seven million, six hundred fifty-six thousand, twenty-eight".