249785954 has 16 divisors (see below), whose sum is σ = 409052160. Its totient is φ = 113452560.

The previous prime is 249785933. The next prime is 249785971. The reversal of 249785954 is 459587942.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 249785896 and 249785905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31967 + ... + 39005.

It is an arithmetic number, because the mean of its divisors is an integer number (25565760).

Almost surely, 2^249785954 is an apocalyptic number.

249785954 is a deficient number, since it is larger than the sum of its proper divisors (159266206).

249785954 is a wasteful number, since it uses less digits than its factorization.

249785954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8665.

The product of its digits is 3628800, while the sum is 53.

The square root of 249785954 is about 15804.6181225615. The cubic root of 249785954 is about 629.7806862386.

The spelling of 249785954 in words is "two hundred forty-nine million, seven hundred eighty-five thousand, nine hundred fifty-four".