52245665 has 8 divisors (see below), whose sum is σ = 64389480. Its totient is φ = 40666752.

The previous prime is 52245653. The next prime is 52245671. The reversal of 52245665 is 56654225.

It can be written as a sum of positive squares in 4 ways, for example, as 4787344 + 47458321 = 2188^2 + 6889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52245665 - 2⁶ = 52245601 is a prime.

It is a super-2 number, since 2×52245665² = 5459219022584450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141020 + ... + 141389.

It is an arithmetic number, because the mean of its divisors is an integer number (8048685).

Almost surely, 2^52245665 is an apocalyptic number.

It is an amenable number.

52245665 is a deficient number, since it is larger than the sum of its proper divisors (12143815).

52245665 is a wasteful number, since it uses less digits than its factorization.

52245665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282451.

The product of its digits is 72000, while the sum is 35.

The square root of 52245665 is about 7228.1162829606. The cubic root of 52245665 is about 373.8379792362.

The spelling of 52245665 in words is "fifty-two million, two hundred forty-five thousand, six hundred sixty-five".