252091512 has 48 divisors (see below), whose sum is σ = 687687000. Its totient is φ = 83422656.

The previous prime is 252091481. The next prime is 252091537. The reversal of 252091512 is 215190252.

252091512 is a `hidden beast` number, since 2 + 520 + 91 + 51 + 2 = 666.

252091512 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252091512² = 127100260844892288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2587 + ... + 22602.

Almost surely, 2^252091512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252091512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343843500).

252091512 is an abundant number, since it is smaller than the sum of its proper divisors (435595488).

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

252091512 is a wasteful number, since it uses less digits than its factorization.

252091512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25340 (or 25333 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 252091512 is about 15877.3899618294. The cubic root of 252091512 is about 631.7124085415.

The spelling of 252091512 in words is "two hundred fifty-two million, ninety-one thousand, five hundred twelve".