52011431 has 4 divisors (see below), whose sum is σ = 52342872. Its totient is φ = 51679992.

The previous prime is 52011409. The next prime is 52011451. The reversal of 52011431 is 13411025.

52011431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 52011431 - 2¹⁰ = 52010407 is a prime.

It is a super-2 number, since 2×52011431² = 5410377909335522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52011451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165485 + ... + 165798.

It is an arithmetic number, because the mean of its divisors is an integer number (13085718).

Almost surely, 2^52011431 is an apocalyptic number.

52011431 is a deficient number, since it is larger than the sum of its proper divisors (331441).

52011431 is a wasteful number, since it uses less digits than its factorization.

52011431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331440.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 52011431 is about 7211.8951046171. The cubic root of 52011431 is about 373.2784638926.

Adding to 52011431 its reverse (13411025), we get a palindrome (65422456).

The spelling of 52011431 in words is "fifty-two million, eleven thousand, four hundred thirty-one".