252425155 has 4 divisors (see below), whose sum is σ = 302910192. Its totient is φ = 201940120.

The previous prime is 252425153. The next prime is 252425171. The reversal of 252425155 is 551524252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 252425155 - 2¹ = 252425153 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252425153) 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, 25242511 + ... + 25242520.

It is an arithmetic number, because the mean of its divisors is an integer number (75727548).

Almost surely, 2^252425155 is an apocalyptic number.

252425155 is a deficient number, since it is larger than the sum of its proper divisors (50485037).

252425155 is an equidigital number, since it uses as much as digits as its factorization.

252425155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50485036.

The product of its digits is 20000, while the sum is 31.

The square root of 252425155 is about 15887.8933468223. The cubic root of 252425155 is about 631.9909760435.

The spelling of 252425155 in words is "two hundred fifty-two million, four hundred twenty-five thousand, one hundred fifty-five".