250713978 has 8 divisors (see below), whose sum is σ = 501427968. Its totient is φ = 83571324.

The previous prime is 250713917. The next prime is 250713989. The reversal of 250713978 is 879317052.

It is a sphenic number, since it is the product of 3 distinct primes.

250713978 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20892826 + ... + 20892837.

It is an arithmetic number, because the mean of its divisors is an integer number (62678496).

Almost surely, 2^250713978 is an apocalyptic number.

250713978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

250713978 is a wasteful number, since it uses less digits than its factorization.

250713978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41785668.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 250713978 is about 15833.9501704407. The cubic root of 250713978 is about 630.5596588919.

The spelling of 250713978 in words is "two hundred fifty million, seven hundred thirteen thousand, nine hundred seventy-eight".