252525544 has 8 divisors (see below), whose sum is σ = 473485410. Its totient is φ = 126262768.

The previous prime is 252525521. The next prime is 252525547. The reversal of 252525544 is 445525252.

It can be written as a sum of positive squares in only one way, i.e., 167184900 + 85340644 = 12930^2 + 9238^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (252525547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15782839 + ... + 15782854.

Almost surely, 2^252525544 is an apocalyptic number.

It is an amenable number.

252525544 is a deficient number, since it is larger than the sum of its proper divisors (220959866).

252525544 is a wasteful number, since it uses less digits than its factorization.

252525544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31565699 (or 31565695 counting only the distinct ones).

The product of its digits is 80000, while the sum is 34.

The square root of 252525544 is about 15891.0523251294. The cubic root of 252525544 is about 632.0747454725.

It can be divided in two parts, 252525 and 544, that multiplied together give a triangular number (137373600 = T₁₆₅₇₅).

The spelling of 252525544 in words is "two hundred fifty-two million, five hundred twenty-five thousand, five hundred forty-four".