52248257 has 4 divisors (see below), whose sum is σ = 52413396. Its totient is φ = 52083120.

The previous prime is 52248253. The next prime is 52248277. The reversal of 52248257 is 75284225.

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 6130576 + 46117681 = 2476^2 + 6791^2 .

It is a cyclic number.

It is not a de Polignac number, because 52248257 - 2² = 52248253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52248253) 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, 82094 + ... + 82727.

It is an arithmetic number, because the mean of its divisors is an integer number (13103349).

Almost surely, 2^52248257 is an apocalyptic number.

It is an amenable number.

52248257 is a deficient number, since it is larger than the sum of its proper divisors (165139).

52248257 is a wasteful number, since it uses less digits than its factorization.

52248257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165138.

The product of its digits is 44800, while the sum is 35.

The square root of 52248257 is about 7228.2955805639. The cubic root of 52248257 is about 373.8441613888.

The spelling of 52248257 in words is "fifty-two million, two hundred forty-eight thousand, two hundred fifty-seven".