52002531 has 24 divisors (see below), whose sum is σ = 88617984. Its totient is φ = 28756080.

The previous prime is 52002529. The next prime is 52002547. The reversal of 52002531 is 13520025.

It is a happy number.

It is not a de Polignac number, because 52002531 - 2¹ = 52002529 is a prime.

It is a super-2 number, since 2×52002531² = 5408526460811922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52002521) 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, 11361 + ... + 15266.

It is an arithmetic number, because the mean of its divisors is an integer number (3692416).

Almost surely, 2^52002531 is an apocalyptic number.

52002531 is a deficient number, since it is larger than the sum of its proper divisors (36615453).

52002531 is a wasteful number, since it uses less digits than its factorization.

52002531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26671 (or 26668 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 52002531 is about 7211.2780420672. The cubic root of 52002531 is about 373.2571713436.

Adding to 52002531 its reverse (13520025), we get a palindrome (65522556).

The spelling of 52002531 in words is "fifty-two million, two thousand, five hundred thirty-one".