252163611 has 80 divisors (see below), whose sum is σ = 459993600. Its totient is φ = 134462592.

The previous prime is 252163609. The next prime is 252163657. The reversal of 252163611 is 116361252.

252163611 is a `hidden beast` number, since 2 + 5 + 21 + 636 + 1 + 1 = 666.

It is not a de Polignac number, because 252163611 - 2¹ = 252163609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (252163111) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 958666 + ... + 958928.

It is an arithmetic number, because the mean of its divisors is an integer number (5749920).

Almost surely, 2^252163611 is an apocalyptic number.

252163611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252163611 is a deficient number, since it is larger than the sum of its proper divisors (207829989).

252163611 is a wasteful number, since it uses less digits than its factorization.

252163611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 381 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 252163611 is about 15879.6602923362. The cubic root of 252163611 is about 631.7726267419.

The spelling of 252163611 in words is "two hundred fifty-two million, one hundred sixty-three thousand, six hundred eleven".