52511431 has 8 divisors (see below), whose sum is σ = 62082720. Its totient is φ = 43457568.

The previous prime is 52511401. The next prime is 52511441. The reversal of 52511431 is 13411525.

It is a happy number.

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

It is not a de Polignac number, because 52511431 - 2¹¹ = 52509383 is a prime.

It is a super-2 number, since 2×52511431² = 5514900771335522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52511401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129136 + ... + 129541.

It is an arithmetic number, because the mean of its divisors is an integer number (7760340).

Almost surely, 2^52511431 is an apocalyptic number.

52511431 is a deficient number, since it is larger than the sum of its proper divisors (9571289).

52511431 is a wasteful number, since it uses less digits than its factorization.

52511431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258713.

The product of its digits is 600, while the sum is 22.

The square root of 52511431 is about 7246.4771441025. The cubic root of 52511431 is about 374.4707936746.

Adding to 52511431 its reverse (13411525), we get a palindrome (65922956).

The spelling of 52511431 in words is "fifty-two million, five hundred eleven thousand, four hundred thirty-one".