252451 has 4 divisors (see below), whose sum is σ = 259312. Its totient is φ = 245592.

The previous prime is 252449. The next prime is 252457. The reversal of 252451 is 154252.

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 252451 - 2¹ = 252449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252457) 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, 3375 + ... + 3448.

It is an arithmetic number, because the mean of its divisors is an integer number (64828).

2²⁵²⁴⁵¹ is an apocalyptic number.

252451 is a deficient number, since it is larger than the sum of its proper divisors (6861).

252451 is an equidigital number, since it uses as much as digits as its factorization.

252451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860.

The product of its digits is 400, while the sum is 19.

The square root of 252451 is about 502.4450218681. The cubic root of 252451 is about 63.2012544482.

It can be divided in two parts, 252 and 451, that added together give a triangular number (703 = T₃₇).

The spelling of 252451 in words is "two hundred fifty-two thousand, four hundred fifty-one".