252251455 has 4 divisors (see below), whose sum is σ = 302701752. Its totient is φ = 201801160.

The previous prime is 252251413. The next prime is 252251471. The reversal of 252251455 is 554152252.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-252251455 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25225141 + ... + 25225150.

It is an arithmetic number, because the mean of its divisors is an integer number (75675438).

Almost surely, 2^252251455 is an apocalyptic number.

252251455 is a deficient number, since it is larger than the sum of its proper divisors (50450297).

252251455 is an equidigital number, since it uses as much as digits as its factorization.

252251455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50450296.

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

The square root of 252251455 is about 15882.4259796796. The cubic root of 252251455 is about 631.8459798997.

The spelling of 252251455 in words is "two hundred fifty-two million, two hundred fifty-one thousand, four hundred fifty-five".