52261231 has 6 divisors (see below), whose sum is σ = 57444296. Its totient is φ = 47510100.

The previous prime is 52261189. The next prime is 52261283. The reversal of 52261231 is 13216225.

It is not a de Polignac number, because 52261231 - 2¹¹ = 52259183 is a prime.

It is a super-2 number, since 2×52261231² = 5462472531270722, 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 (52261291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 215835 + ... + 216076.

Almost surely, 2^52261231 is an apocalyptic number.

52261231 is a deficient number, since it is larger than the sum of its proper divisors (5183065).

52261231 is a wasteful number, since it uses less digits than its factorization.

52261231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431933 (or 431922 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 52261231 is about 7229.1929701731. The cubic root of 52261231 is about 373.8751024704.

Adding to 52261231 its reverse (13216225), we get a palindrome (65477456).

The spelling of 52261231 in words is "fifty-two million, two hundred sixty-one thousand, two hundred thirty-one".