250520140 has 48 divisors (see below), whose sum is σ = 591208128. Its totient is φ = 88475904.

The previous prime is 250520093. The next prime is 250520147. The reversal of 250520140 is 41025052.

It is not an unprimeable number, because it can be changed into a prime (250520147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14967 + ... + 26926.

It is an arithmetic number, because the mean of its divisors is an integer number (12316836).

Almost surely, 2^250520140 is an apocalyptic number.

250520140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250520140 is an abundant number, since it is smaller than the sum of its proper divisors (340687988).

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

250520140 is a wasteful number, since it uses less digits than its factorization.

250520140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41938 (or 41936 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 250520140 is about 15827.8280253483. The cubic root of 250520140 is about 630.3971125283.

Adding to 250520140 its reverse (41025052), we get a palindrome (291545192).

The spelling of 250520140 in words is "two hundred fifty million, five hundred twenty thousand, one hundred forty".