78125560 has 32 divisors (see below), whose sum is σ = 178264800. Its totient is φ = 30808960.

The previous prime is 78125543. The next prime is 78125563. The reversal of 78125560 is 6552187.

It is a super-2 number, since 2×78125560² = 12207206250627200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78125563) 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, 10915 + ... + 16594.

It is an arithmetic number, because the mean of its divisors is an integer number (5570775).

Almost surely, 2^78125560 is an apocalyptic number.

It is an amenable number.

78125560 is an abundant number, since it is smaller than the sum of its proper divisors (100139240).

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

78125560 is a wasteful number, since it uses less digits than its factorization.

78125560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27591 (or 27587 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 78125560 is about 8838.8664431589. The cubic root of 78125560 is about 427.4950080924.

The spelling of 78125560 in words is "seventy-eight million, one hundred twenty-five thousand, five hundred sixty".