52001616 has 20 divisors (see below), whose sum is σ = 134337632. Its totient is φ = 17333856.

The previous prime is 52001591. The next prime is 52001617. The reversal of 52001616 is 61610025.

It is a happy number.

52001616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×52001616² = 5408336133222912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52001592 and 52001601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52001617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541636 + ... + 541731.

Almost surely, 2^52001616 is an apocalyptic number.

It is an amenable number.

52001616 is an abundant number, since it is smaller than the sum of its proper divisors (82336016).

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

52001616 is a wasteful number, since it uses less digits than its factorization.

52001616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083378 (or 1083372 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 52001616 is about 7211.2145994971. The cubic root of 52001616 is about 373.2549821404.

The spelling of 52001616 in words is "fifty-two million, one thousand, six hundred sixteen".