252251361 has 16 divisors (see below), whose sum is σ = 374299200. Its totient is φ = 167900544.

The previous prime is 252251347. The next prime is 252251381. The reversal of 252251361 is 163152252.

It is a happy number.

252251361 is a `hidden beast` number, since 2 + 52 + 251 + 361 = 666.

It is not a de Polignac number, because 252251361 - 2¹⁰ = 252250337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (252251381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10705 + ... + 24881.

It is an arithmetic number, because the mean of its divisors is an integer number (23393700).

Almost surely, 2^252251361 is an apocalyptic number.

It is an amenable number.

252251361 is a deficient number, since it is larger than the sum of its proper divisors (122047839).

252251361 is a wasteful number, since it uses less digits than its factorization.

252251361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14845 (or 14839 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 252251361 is about 15882.4230204336. The cubic root of 252251361 is about 631.8459014151.

The spelling of 252251361 in words is "two hundred fifty-two million, two hundred fifty-one thousand, three hundred sixty-one".