52399131 has 16 divisors (see below), whose sum is σ = 73943040. Its totient is φ = 32914080.

The previous prime is 52399111. The next prime is 52399133. The reversal of 52399131 is 13199325.

It is not a de Polignac number, because 52399131 - 2¹³ = 52390939 is a prime.

It is a super-2 number, since 2×52399131² = 5491337859110322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52399092 and 52399101.

It is not an unprimeable number, because it can be changed into a prime (52399133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8481 + ... + 13293.

It is an arithmetic number, because the mean of its divisors is an integer number (4621440).

Almost surely, 2^52399131 is an apocalyptic number.

52399131 is a deficient number, since it is larger than the sum of its proper divisors (21543909).

52399131 is a wasteful number, since it uses less digits than its factorization.

52399131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026.

The product of its digits is 7290, while the sum is 33.

The square root of 52399131 is about 7238.7244042027. The cubic root of 52399131 is about 374.2036576563.

The spelling of 52399131 in words is "fifty-two million, three hundred ninety-nine thousand, one hundred thirty-one".