52809031 has 16 divisors (see below), whose sum is σ = 59609088. Its totient is φ = 46368000.

The previous prime is 52809023. The next prime is 52809049. The reversal of 52809031 is 13090825.

It is a cyclic number.

It is not a de Polignac number, because 52809031 - 2³ = 52809023 is a prime.

It is a super-2 number, since 2×52809031² = 5577587510317922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52809011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45306 + ... + 46456.

It is an arithmetic number, because the mean of its divisors is an integer number (3725568).

Almost surely, 2^52809031 is an apocalyptic number.

52809031 is a deficient number, since it is larger than the sum of its proper divisors (6800057).

52809031 is a wasteful number, since it uses less digits than its factorization.

52809031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 52809031 is about 7266.9822484990. The cubic root of 52809031 is about 375.1768789275.

Adding to 52809031 its reverse (13090825), we get a palindrome (65899856).

The spelling of 52809031 in words is "fifty-two million, eight hundred nine thousand, thirty-one".