252168452 has 6 divisors (see below), whose sum is σ = 441294798. Its totient is φ = 126084224.

The previous prime is 252168451. The next prime is 252168457. The reversal of 252168452 is 254861252.

It can be written as a sum of positive squares in only one way, i.e., 236359876 + 15808576 = 15374^2 + 3976^2 .

It is not an unprimeable number, because it can be changed into a prime (252168451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31521053 + ... + 31521060.

It is an arithmetic number, because the mean of its divisors is an integer number (73549133).

Almost surely, 2^252168452 is an apocalyptic number.

It is an amenable number.

252168452 is a deficient number, since it is larger than the sum of its proper divisors (189126346).

252168452 is a wasteful number, since it uses less digits than its factorization.

252168452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63042117 (or 63042115 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 252168452 is about 15879.8127192987. The cubic root of 252168452 is about 631.7766696087.

The spelling of 252168452 in words is "two hundred fifty-two million, one hundred sixty-eight thousand, four hundred fifty-two".