252091966 has 32 divisors (see below), whose sum is σ = 446040000. Its totient is φ = 106799616.

The previous prime is 252091951. The next prime is 252091979. The reversal of 252091966 is 669190252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58990 + ... + 63118.

It is an arithmetic number, because the mean of its divisors is an integer number (13938750).

Almost surely, 2^252091966 is an apocalyptic number.

252091966 is a deficient number, since it is larger than the sum of its proper divisors (193948034).

252091966 is an equidigital number, since it uses as much as digits as its factorization.

252091966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241 (or 4227 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 252091966 is about 15877.4042588831. The cubic root of 252091966 is about 631.7127877652.

The spelling of 252091966 in words is "two hundred fifty-two million, ninety-one thousand, nine hundred sixty-six".