249875972 has 6 divisors (see below), whose sum is σ = 437282958. Its totient is φ = 124937984.

The previous prime is 249875971. The next prime is 249875981. The reversal of 249875972 is 279578942.

249875972 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 151191616 + 98684356 = 12296^2 + 9934^2 .

249875972 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (249875971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31234493 + ... + 31234500.

It is an arithmetic number, because the mean of its divisors is an integer number (72880493).

Almost surely, 2^249875972 is an apocalyptic number.

It is an amenable number.

249875972 is a deficient number, since it is larger than the sum of its proper divisors (187406986).

249875972 is a wasteful number, since it uses less digits than its factorization.

249875972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62468997 (or 62468995 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 53.

The square root of 249875972 is about 15807.4657045334. The cubic root of 249875972 is about 629.8563307229.

The spelling of 249875972 in words is "two hundred forty-nine million, eight hundred seventy-five thousand, nine hundred seventy-two".