52399616 has 40 divisors (see below), whose sum is σ = 106727544. Its totient is φ = 25692160.

The previous prime is 52399609. The next prime is 52399621. The reversal of 52399616 is 61699325.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26171 + ... + 28101.

Almost surely, 2^52399616 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 52399616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53363772).

52399616 is an abundant number, since it is smaller than the sum of its proper divisors (54327928).

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

52399616 is an equidigital number, since it uses as much as digits as its factorization.

52399616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 1986 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 52399616 is about 7238.7579045027. The cubic root of 52399616 is about 374.2048121806.

The spelling of 52399616 in words is "fifty-two million, three hundred ninety-nine thousand, six hundred sixteen".