52505031 has 16 divisors (see below), whose sum is σ = 71384544. Its totient is φ = 34320384.

The previous prime is 52504987. The next prime is 52505069. The reversal of 52505031 is 13050525.

It is not a de Polignac number, because 52505031 - 2¹³ = 52496839 is a prime.

It is a super-2 number, since 2×52505031² = 5513556560621922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52504989 and 52505007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505731) 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, 42535 + ... + 43751.

It is an arithmetic number, because the mean of its divisors is an integer number (4461534).

Almost surely, 2^52505031 is an apocalyptic number.

52505031 is a deficient number, since it is larger than the sum of its proper divisors (18879513).

52505031 is a wasteful number, since it uses less digits than its factorization.

52505031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 52505031 is about 7246.0355367608. The cubic root of 52505031 is about 374.4555797779.

Adding to 52505031 its reverse (13050525), we get a palindrome (65555556).

The spelling of 52505031 in words is "fifty-two million, five hundred five thousand, thirty-one".