252505437 has 16 divisors (see below), whose sum is σ = 358551360. Its totient is φ = 157513472.

The previous prime is 252505433. The next prime is 252505469. The reversal of 252505437 is 734505252.

It is a cyclic number.

It is not a de Polignac number, because 252505437 - 2² = 252505433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252505398 and 252505407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252505433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5487 + ... + 23132.

It is an arithmetic number, because the mean of its divisors is an integer number (22409460).

Almost surely, 2^252505437 is an apocalyptic number.

It is an amenable number.

252505437 is a deficient number, since it is larger than the sum of its proper divisors (106045923).

252505437 is a wasteful number, since it uses less digits than its factorization.

252505437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28812.

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 252505437 is about 15890.4196609152. The cubic root of 252505437 is about 632.0579689991.

The spelling of 252505437 in words is "two hundred fifty-two million, five hundred five thousand, four hundred thirty-seven".