52512131 has 4 divisors (see below), whose sum is σ = 60013872. Its totient is φ = 45010392.

The previous prime is 52512107. The next prime is 52512149. The reversal of 52512131 is 13121525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52512131 - 2¹⁴ = 52495747 is a prime.

It is a super-2 number, since 2×52512131² = 5515047804322322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52512101) 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, 3750860 + ... + 3750873.

It is an arithmetic number, because the mean of its divisors is an integer number (15003468).

Almost surely, 2^52512131 is an apocalyptic number.

52512131 is a deficient number, since it is larger than the sum of its proper divisors (7501741).

52512131 is an equidigital number, since it uses as much as digits as its factorization.

52512131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501740.

The product of its digits is 300, while the sum is 20.

The square root of 52512131 is about 7246.5254432728. The cubic root of 52512131 is about 374.4724576195.

Adding to 52512131 its reverse (13121525), we get a palindrome (65633656).

The spelling of 52512131 in words is "fifty-two million, five hundred twelve thousand, one hundred thirty-one".