252701761 has 4 divisors (see below), whose sum is σ = 272140372. Its totient is φ = 233263152.

The previous prime is 252701747. The next prime is 252701777. The reversal of 252701761 is 167107252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 150307600 + 102394161 = 12260^2 + 10119^2 .

It is a cyclic number.

It is not a de Polignac number, because 252701761 - 2⁷ = 252701633 is a prime.

It is a super-2 number, since 2×252701761² = 127716360025002242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252701731) 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, 9719286 + ... + 9719311.

It is an arithmetic number, because the mean of its divisors is an integer number (68035093).

Almost surely, 2^252701761 is an apocalyptic number.

It is an amenable number.

252701761 is a deficient number, since it is larger than the sum of its proper divisors (19438611).

252701761 is a wasteful number, since it uses less digits than its factorization.

252701761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19438610.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 252701761 is about 15896.5958934610. The cubic root of 252701761 is about 632.2217357736.

The spelling of 252701761 in words is "two hundred fifty-two million, seven hundred one thousand, seven hundred sixty-one".