252451415 has 4 divisors (see below), whose sum is σ = 302941704. Its totient is φ = 201961128.

The previous prime is 252451403. The next prime is 252451417. The reversal of 252451415 is 514154252.

252451415 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.

It is a cyclic number.

It is not a de Polignac number, because 252451415 - 2⁴ = 252451399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252451417) 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, 25245137 + ... + 25245146.

It is an arithmetic number, because the mean of its divisors is an integer number (75735426).

Almost surely, 2^252451415 is an apocalyptic number.

252451415 is a deficient number, since it is larger than the sum of its proper divisors (50490289).

252451415 is an equidigital number, since it uses as much as digits as its factorization.

252451415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50490288.

The product of its digits is 8000, while the sum is 29.

The square root of 252451415 is about 15888.7197407469. The cubic root of 252451415 is about 632.0128908002.

The spelling of 252451415 in words is "two hundred fifty-two million, four hundred fifty-one thousand, four hundred fifteen".