52311672 has 96 divisors (see below), whose sum is σ = 162938880. Its totient is φ = 14852160.

The previous prime is 52311647. The next prime is 52311691. The reversal of 52311672 is 27611325.

It is a happy number.

It is a super-2 number, since 2×52311672² = 5473022054871168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136393 + ... + 136775.

It is an arithmetic number, because the mean of its divisors is an integer number (1697280).

Almost surely, 2^52311672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52311672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81469440).

52311672 is an abundant number, since it is smaller than the sum of its proper divisors (110627208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52311672 is a wasteful number, since it uses less digits than its factorization.

52311672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 666 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 52311672 is about 7232.6808307847. The cubic root of 52311672 is about 373.9953482030.

Adding to 52311672 its reverse (27611325), we get a palindrome (79922997).

It can be divided in two parts, 5231 and 1672, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 52311672 in words is "fifty-two million, three hundred eleven thousand, six hundred seventy-two".