252004451 has 4 divisors (see below), whose sum is σ = 252050472. Its totient is φ = 251958432.

The previous prime is 252004439. The next prime is 252004469. The reversal of 252004451 is 154400252.

It is a happy number.

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 252004451 - 2⁶ = 252004387 is a prime.

It is a super-2 number, since 2×252004451² = 127012486647622802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252006451) 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, 13481 + ... + 26186.

It is an arithmetic number, because the mean of its divisors is an integer number (63012618).

Almost surely, 2^252004451 is an apocalyptic number.

252004451 is a deficient number, since it is larger than the sum of its proper divisors (46021).

252004451 is an equidigital number, since it uses as much as digits as its factorization.

252004451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46020.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 252004451 is about 15874.6480590909. The cubic root of 252004451 is about 631.6396785422.

The spelling of 252004451 in words is "two hundred fifty-two million, four thousand, four hundred fifty-one".