252056240 has 40 divisors (see below), whose sum is σ = 587447520. Its totient is φ = 100578816.

The previous prime is 252056237. The next prime is 252056243. The reversal of 252056240 is 42650252.

It is an interprime number because it is at equal distance from previous prime (252056237) and next prime (252056243).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (252056243) 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, 31532 + ... + 38708.

It is an arithmetic number, because the mean of its divisors is an integer number (14686188).

Almost surely, 2^252056240 is an apocalyptic number.

252056240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252056240 is an abundant number, since it is smaller than the sum of its proper divisors (335391280).

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

252056240 is a wasteful number, since it uses less digits than its factorization.

252056240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7629 (or 7623 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 252056240 is about 15876.2791610629. The cubic root of 252056240 is about 631.6829446388.

The spelling of 252056240 in words is "two hundred fifty-two million, fifty-six thousand, two hundred forty".