252040293 has 6 divisors (see below), whose sum is σ = 364058214. Its totient is φ = 168026856.

The previous prime is 252040289. The next prime is 252040303. The reversal of 252040293 is 392040252.

252040293 is a `hidden beast` number, since 252 + 0 + 402 + 9 + 3 = 666.

252040293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 220433409 + 31606884 = 14847^2 + 5622^2 .

It is not a de Polignac number, because 252040293 - 2² = 252040289 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 (252040253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14002230 + ... + 14002247.

It is an arithmetic number, because the mean of its divisors is an integer number (60676369).

Almost surely, 2^252040293 is an apocalyptic number.

It is an amenable number.

252040293 is a deficient number, since it is larger than the sum of its proper divisors (112017921).

252040293 is a wasteful number, since it uses less digits than its factorization.

252040293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28004483 (or 28004480 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 252040293 is about 15875.7769258704. The cubic root of 252040293 is about 631.6696226643.

The spelling of 252040293 in words is "two hundred fifty-two million, forty thousand, two hundred ninety-three".