52001131 has 24 divisors (see below), whose sum is σ = 65089440. Its totient is φ = 40674816.

The previous prime is 52001107. The next prime is 52001141. The reversal of 52001131 is 13110025.

It is not a de Polignac number, because 52001131 - 2⁵ = 52001099 is a prime.

It is a super-2 number, since 2×52001131² = 5408235250558322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52001101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133485 + ... + 133873.

It is an arithmetic number, because the mean of its divisors is an integer number (2712060).

Almost surely, 2^52001131 is an apocalyptic number.

52001131 is a deficient number, since it is larger than the sum of its proper divisors (13088309).

52001131 is a wasteful number, since it uses less digits than its factorization.

52001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 52001131 is about 7211.1809712418. The cubic root of 52001131 is about 373.2538217327.

Adding to 52001131 its reverse (13110025), we get a palindrome (65111156).

The spelling of 52001131 in words is "fifty-two million, one thousand, one hundred thirty-one".