905251250 has 90 divisors (see below), whose sum is σ = 1823020353. Its totient is φ = 336996000.

The previous prime is 905251229. The next prime is 905251267. The reversal of 905251250 is 52152509.

It can be written as a sum of positive squares in 8 ways, for example, as 26306641 + 878944609 = 5129^2 + 29647^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=21275.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 24466232 + ... + 24466268.

Almost surely, 2^905251250 is an apocalyptic number.

905251250 is an abundant number, since it is smaller than the sum of its proper divisors (917769103).

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

905251250 is an equidigital number, since it uses as much as digits as its factorization.

905251250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 905251250 is about 30087.3935394876. The cubic root of 905251250 is about 967.3635317313.

The spelling of 905251250 in words is "nine hundred five million, two hundred fifty-one thousand, two hundred fifty".