252121488 has 40 divisors (see below), whose sum is σ = 685596000. Its totient is φ = 79617024.

The previous prime is 252121483. The next prime is 252121501. The reversal of 252121488 is 884121252.

It is a super-2 number, since 2×252121488² = 127130489422668288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252121483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137313 + ... + 139136.

It is an arithmetic number, because the mean of its divisors is an integer number (17139900).

Almost surely, 2^252121488 is an apocalyptic number.

It is an amenable number.

252121488 is an abundant number, since it is smaller than the sum of its proper divisors (433474512).

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

252121488 is a wasteful number, since it uses less digits than its factorization.

252121488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276479 (or 276473 counting only the distinct ones).

The product of its digits is 10240, while the sum is 33.

The square root of 252121488 is about 15878.3339176376. Note that the first 3 decimals coincide. The cubic root of 252121488 is about 631.7374463548.

The spelling of 252121488 in words is "two hundred fifty-two million, one hundred twenty-one thousand, four hundred eighty-eight".