252046281 has 4 divisors (see below), whose sum is σ = 336061712. Its totient is φ = 168030852.

The previous prime is 252046247. The next prime is 252046321. The reversal of 252046281 is 182640252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 252046281 - 2⁹ = 252045769 is a prime.

It is a super-2 number, since 2×252046281² = 127054655531861922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252046241) 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, 42007711 + ... + 42007716.

It is an arithmetic number, because the mean of its divisors is an integer number (84015428).

Almost surely, 2^252046281 is an apocalyptic number.

It is an amenable number.

252046281 is a deficient number, since it is larger than the sum of its proper divisors (84015431).

252046281 is an equidigital number, since it uses as much as digits as its factorization.

252046281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84015430.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 252046281 is about 15875.9655139459. The cubic root of 252046281 is about 631.6746250493.

The spelling of 252046281 in words is "two hundred fifty-two million, forty-six thousand, two hundred eighty-one".