52378680 has 128 divisors (see below), whose sum is σ = 165473280. Its totient is φ = 13248000.

The previous prime is 52378673. The next prime is 52378721. The reversal of 52378680 is 8687325.

It is a super-2 number, since 2×52378680² = 5487052237084800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208555 + ... + 208805.

It is an arithmetic number, because the mean of its divisors is an integer number (1292760).

Almost surely, 2^52378680 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 52378680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82736640).

52378680 is an abundant number, since it is smaller than the sum of its proper divisors (113094600).

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

52378680 is a wasteful number, since it uses less digits than its factorization.

52378680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 52378680 is about 7237.3116555804. The cubic root of 52378680 is about 374.1549683321.

The spelling of 52378680 in words is "fifty-two million, three hundred seventy-eight thousand, six hundred eighty".