52478680 has 16 divisors (see below), whose sum is σ = 118077120. Its totient is φ = 20991456.

The previous prime is 52478653. The next prime is 52478687. The reversal of 52478680 is 8687425.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1311967 = 52478680 / (5 + 2 + 4 + 7 + 8 + 6 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52478687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655944 + ... + 656023.

It is an arithmetic number, because the mean of its divisors is an integer number (7379820).

Almost surely, 2^52478680 is an apocalyptic number.

It is an amenable number.

52478680 is an abundant number, since it is smaller than the sum of its proper divisors (65598440).

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

52478680 is a wasteful number, since it uses less digits than its factorization.

52478680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311978 (or 1311974 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 52478680 is about 7244.2170039280. The cubic root of 52478680 is about 374.3929259079.

The spelling of 52478680 in words is "fifty-two million, four hundred seventy-eight thousand, six hundred eighty".