78625560 has 96 divisors (see below), whose sum is σ = 255482640. Its totient is φ = 19348992.

The previous prime is 78625531. The next prime is 78625567. The reversal of 78625560 is 6552687.

It is a happy number.

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 Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78625567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18342 + ... + 22218.

Almost surely, 2^78625560 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 78625560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127741320).

78625560 is an abundant number, since it is smaller than the sum of its proper divisors (176857080).

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

78625560 is a wasteful number, since it uses less digits than its factorization.

78625560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917 (or 3900 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 78625560 is about 8867.1055029248. The cubic root of 78625560 is about 428.4050522446.

The spelling of 78625560 in words is "seventy-eight million, six hundred twenty-five thousand, five hundred sixty".