52399257 has 8 divisors (see below), whose sum is σ = 71050080. Its totient is φ = 34340640.

The previous prime is 52399231. The next prime is 52399273. The reversal of 52399257 is 75299325.

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

It is not a de Polignac number, because 52399257 - 2¹¹ = 52397209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52399657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147844 + ... + 148197.

It is an arithmetic number, because the mean of its divisors is an integer number (8881260).

Almost surely, 2^52399257 is an apocalyptic number.

It is an amenable number.

52399257 is a deficient number, since it is larger than the sum of its proper divisors (18650823).

52399257 is a wasteful number, since it uses less digits than its factorization.

52399257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296103.

The product of its digits is 170100, while the sum is 42.

The square root of 52399257 is about 7238.7331073883. The cubic root of 52399257 is about 374.2039575952.

The spelling of 52399257 in words is "fifty-two million, three hundred ninety-nine thousand, two hundred fifty-seven".