252401972 has 6 divisors (see below), whose sum is σ = 441703458. Its totient is φ = 126200984.

The previous prime is 252401971. The next prime is 252401999. The reversal of 252401972 is 279104252.

252401972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 250778896 + 1623076 = 15836^2 + 1274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252401971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31550243 + ... + 31550250.

It is an arithmetic number, because the mean of its divisors is an integer number (73617243).

Almost surely, 2^252401972 is an apocalyptic number.

It is an amenable number.

252401972 is a deficient number, since it is larger than the sum of its proper divisors (189301486).

252401972 is a wasteful number, since it uses less digits than its factorization.

252401972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63100497 (or 63100495 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 252401972 is about 15887.1637493921. The cubic root of 252401972 is about 631.9716278723.

The spelling of 252401972 in words is "two hundred fifty-two million, four hundred one thousand, nine hundred seventy-two".