52431616 has 36 divisors (see below), whose sum is σ = 105674800. Its totient is φ = 25961472.

The previous prime is 52431557. The next prime is 52431647. The reversal of 52431616 is 61613425.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26965 + ... + 28843.

Almost surely, 2^52431616 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 52431616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52837400).

52431616 is an abundant number, since it is smaller than the sum of its proper divisors (53243184).

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

52431616 is a wasteful number, since it uses less digits than its factorization.

52431616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004 (or 1990 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 52431616 is about 7240.9678911041. The cubic root of 52431616 is about 374.2809712453.

It can be divided in two parts, 5243 and 1616, that added together give a cube (6859 = 19³).

The spelling of 52431616 in words is "fifty-two million, four hundred thirty-one thousand, six hundred sixteen".