252890061 has 4 divisors (see below), whose sum is σ = 337186752. Its totient is φ = 168593372.

The previous prime is 252890059. The next prime is 252890089. The reversal of 252890061 is 160098252.

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 a cyclic number.

It is not a de Polignac number, because 252890061 - 2¹ = 252890059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252890021) 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, 42148341 + ... + 42148346.

It is an arithmetic number, because the mean of its divisors is an integer number (84296688).

Almost surely, 2^252890061 is an apocalyptic number.

It is an amenable number.

252890061 is a deficient number, since it is larger than the sum of its proper divisors (84296691).

252890061 is an equidigital number, since it uses as much as digits as its factorization.

252890061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84296690.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 252890061 is about 15902.5174422165. The cubic root of 252890061 is about 632.3787295296.

The spelling of 252890061 in words is "two hundred fifty-two million, eight hundred ninety thousand, sixty-one".