52611331 has 4 divisors (see below), whose sum is σ = 53077032. Its totient is φ = 52145632.

The previous prime is 52611329. The next prime is 52611337. The reversal of 52611331 is 13311625.

It is a happy number.

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 52611331 - 2¹ = 52611329 is a prime.

It is a super-2 number, since 2×52611331² = 5535904299183122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52611337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232681 + ... + 232906.

It is an arithmetic number, because the mean of its divisors is an integer number (13269258).

Almost surely, 2^52611331 is an apocalyptic number.

52611331 is a deficient number, since it is larger than the sum of its proper divisors (465701).

52611331 is a wasteful number, since it uses less digits than its factorization.

52611331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465700.

The product of its digits is 540, while the sum is 22.

The square root of 52611331 is about 7253.3668733906. The cubic root of 52611331 is about 374.7081130124.

Adding to 52611331 its reverse (13311625), we get a palindrome (65922956).

The spelling of 52611331 in words is "fifty-two million, six hundred eleven thousand, three hundred thirty-one".