52117680 has 40 divisors (see below), whose sum is σ = 161565552. Its totient is φ = 13897984.

The previous prime is 52117679. The next prime is 52117687. The reversal of 52117680 is 8671125.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (52117687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108339 + ... + 108818.

Almost surely, 2^52117680 is an apocalyptic number.

It is an amenable number.

52117680 is an abundant number, since it is smaller than the sum of its proper divisors (109447872).

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

52117680 is a wasteful number, since it uses less digits than its factorization.

52117680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217173 (or 217167 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 52117680 is about 7219.2575795576. The cubic root of 52117680 is about 373.5324688758.

The spelling of 52117680 in words is "fifty-two million, one hundred seventeen thousand, six hundred eighty".