252166427 has 4 divisors (see below), whose sum is σ = 252206136. Its totient is φ = 252126720.

The previous prime is 252166403. The next prime is 252166451. The reversal of 252166427 is 724661252.

252166427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (252166403) and next prime (252166451).

It is a cyclic number.

It is not a de Polignac number, because 252166427 - 2⁸ = 252166171 is a prime.

It is a super-3 number, since 3×252166427³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252166477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7949 + ... + 23822.

It is an arithmetic number, because the mean of its divisors is an integer number (63051534).

Almost surely, 2^252166427 is an apocalyptic number.

252166427 is a deficient number, since it is larger than the sum of its proper divisors (39709).

252166427 is an equidigital number, since it uses as much as digits as its factorization.

252166427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39708.

The product of its digits is 40320, while the sum is 35.

The square root of 252166427 is about 15879.7489589729. The cubic root of 252166427 is about 631.7749784757.

The spelling of 252166427 in words is "two hundred fifty-two million, one hundred sixty-six thousand, four hundred twenty-seven".