252290591 has 16 divisors (see below), whose sum is σ = 306063360. Its totient is φ = 203015040.

The previous prime is 252290581. The next prime is 252290641. The reversal of 252290591 is 195092252.

It is a cyclic number.

It is not a de Polignac number, because 252290591 - 2¹⁴ = 252274207 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 (252290581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48830 + ... + 53748.

It is an arithmetic number, because the mean of its divisors is an integer number (19128960).

Almost surely, 2^252290591 is an apocalyptic number.

252290591 is a deficient number, since it is larger than the sum of its proper divisors (53772769).

252290591 is a wasteful number, since it uses less digits than its factorization.

252290591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 252290591 is about 15883.6579854894. The cubic root of 252290591 is about 631.8786544989.

The spelling of 252290591 in words is "two hundred fifty-two million, two hundred ninety thousand, five hundred ninety-one".