52061616 has 150 divisors (see below), whose sum is σ = 161217980. Its totient is φ = 16215552.

The previous prime is 52061591. The next prime is 52061623. The reversal of 52061616 is 61616025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 52061616.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 374475 + ... + 374613.

Almost surely, 2^52061616 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 52061616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80608990).

52061616 is an abundant number, since it is smaller than the sum of its proper divisors (109156364).

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

52061616 is a wasteful number, since it uses less digits than its factorization.

52061616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 52061616 is about 7215.3735870016. The cubic root of 52061616 is about 373.3984821112.

The spelling of 52061616 in words is "fifty-two million, sixty-one thousand, six hundred sixteen".