250403351040 has 120 divisors (see below), whose sum is σ = 867217310388. Its totient is φ = 66774220800.

The previous prime is 250403351021. The next prime is 250403351053. The reversal of 250403351040 is 40153304052.

250403351040 is a `hidden beast` number, since 250 + 40 + 335 + 1 + 0 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 214509775104 + 35893575936 = 463152^2 + 189456^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×250403351040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 250403350995 and 250403351013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5411061 + ... + 5457140.

Almost surely, 2^250403351040 is an apocalyptic number.

250403351040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250403351040 is an abundant number, since it is smaller than the sum of its proper divisors (616813959348).

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

250403351040 is a wasteful number, since it uses less digits than its factorization.

250403351040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10868230 (or 10868211 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 250403351040 its reverse (40153304052), we get a palindrome (290556655092).

The spelling of 250403351040 in words is "two hundred fifty billion, four hundred three million, three hundred fifty-one thousand, forty".