52651620 has 120 divisors (see below), whose sum is σ = 188806464. Its totient is φ = 12032064.

The previous prime is 52651607. The next prime is 52651663. The reversal of 52651620 is 2615625.

52651620 is a `hidden beast` number, since 5 + 2 + 651 + 6 + 2 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9019 + ... + 13661.

Almost surely, 2^52651620 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 52651620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94403232).

52651620 is an abundant number, since it is smaller than the sum of its proper divisors (136154844).

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

52651620 is a wasteful number, since it uses less digits than its factorization.

52651620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671 (or 4660 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 52651620 is about 7256.1436038711. The cubic root of 52651620 is about 374.8037373005.

The spelling of 52651620 in words is "fifty-two million, six hundred fifty-one thousand, six hundred twenty".