252505361 has 4 divisors (see below), whose sum is σ = 252538224. Its totient is φ = 252472500.

The previous prime is 252505343. The next prime is 252505381. The reversal of 252505361 is 163505252.

It is a happy number.

252505361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 252505361 - 2¹⁸ = 252243217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252505381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1946 + ... + 22556.

It is an arithmetic number, because the mean of its divisors is an integer number (63134556).

Almost surely, 2^252505361 is an apocalyptic number.

It is an amenable number.

252505361 is a deficient number, since it is larger than the sum of its proper divisors (32863).

252505361 is a wasteful number, since it uses less digits than its factorization.

252505361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32862.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 252505361 is about 15890.4172695370. The cubic root of 252505361 is about 632.0579055861.

The spelling of 252505361 in words is "two hundred fifty-two million, five hundred five thousand, three hundred sixty-one".