252043615 has 16 divisors (see below), whose sum is σ = 325030752. Its totient is φ = 186937344.

The previous prime is 252043601. The next prime is 252043619. The reversal of 252043615 is 516340252.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252043615 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252043619) 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, 16434 + ... + 27823.

It is an arithmetic number, because the mean of its divisors is an integer number (20314422).

Almost surely, 2^252043615 is an apocalyptic number.

252043615 is a deficient number, since it is larger than the sum of its proper divisors (72987137).

252043615 is a wasteful number, since it uses less digits than its factorization.

252043615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44346.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 252043615 is about 15875.8815503266. The cubic root of 252043615 is about 631.6723978783.

Adding to 252043615 its reverse (516340252), we get a palindrome (768383867).

The spelling of 252043615 in words is "two hundred fifty-two million, forty-three thousand, six hundred fifteen".