78550488 has 24 divisors (see below), whose sum is σ = 212741100. Its totient is φ = 26183472.

The previous prime is 78550487. The next prime is 78550499. The reversal of 78550488 is 88405587.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78550487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 545418 + ... + 545561.

Almost surely, 2^78550488 is an apocalyptic number.

It is an amenable number.

78550488 is an abundant number, since it is smaller than the sum of its proper divisors (134190612).

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

78550488 is a wasteful number, since it uses less digits than its factorization.

78550488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090991 (or 1090984 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 78550488 is about 8862.8713180323. The cubic root of 78550488 is about 428.2686612058.

The spelling of 78550488 in words is "seventy-eight million, five hundred fifty thousand, four hundred eighty-eight".