78031250 has 56 divisors (see below), whose sum is σ = 160310448. Its totient is φ = 28250000.

The previous prime is 78031243. The next prime is 78031259. The reversal of 78031250 is 5213087.

It is not an unprimeable number, because it can be changed into a prime (78031259) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 343637 + ... + 343863.

Almost surely, 2^78031250 is an apocalyptic number.

78031250 is an abundant number, since it is smaller than the sum of its proper divisors (82279198).

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

78031250 is an equidigital number, since it uses as much as digits as its factorization.

78031250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 78031250 is about 8833.5298720274. The cubic root of 78031250 is about 427.3229206298.

The spelling of 78031250 in words is "seventy-eight million, thirty-one thousand, two hundred fifty".