52180656 has 80 divisors (see below), whose sum is σ = 151085568. Its totient is φ = 15379200.

The previous prime is 52180651. The next prime is 52180679. The reversal of 52180656 is 65608125.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (52180651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18201 + ... + 20871.

Almost surely, 2^52180656 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 52180656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75542784).

52180656 is an abundant number, since it is smaller than the sum of its proper divisors (98904912).

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

52180656 is a wasteful number, since it uses less digits than its factorization.

52180656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 52180656 is about 7223.6179300957. The cubic root of 52180656 is about 373.6828600180.

The spelling of 52180656 in words is "fifty-two million, one hundred eighty thousand, six hundred fifty-six".