250540920 has 192 divisors, whose sum is σ = 950040000. Its totient is φ = 57238272.

The previous prime is 250540867. The next prime is 250540931. The reversal of 250540920 is 29045052.

250540920 is a `hidden beast` number, since 250 + 5 + 409 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122466 + ... + 124494.

It is an arithmetic number, because the mean of its divisors is an integer number (4948125).

Almost surely, 2^250540920 is an apocalyptic number.

250540920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250540920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475020000).

250540920 is an abundant number, since it is smaller than the sum of its proper divisors (699499080).

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

250540920 is a wasteful number, since it uses less digits than its factorization.

250540920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067 (or 2046 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 250540920 is about 15828.4844505088. The cubic root of 250540920 is about 630.4145419851.

Adding to 250540920 its reverse (29045052), we get a palindrome (279585972).

The spelling of 250540920 in words is "two hundred fifty million, five hundred forty thousand, nine hundred twenty".