2550391265 has 32 divisors (see below), whose sum is σ = 3182699520. Its totient is φ = 1960588800.

The previous prime is 2550391243. The next prime is 2550391309. The reversal of 2550391265 is 5621930552.

It is not a de Polignac number, because 2550391265 - 2⁶ = 2550391201 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6949112 + ... + 6949478.

It is an arithmetic number, because the mean of its divisors is an integer number (99459360).

Almost surely, 2^2550391265 is an apocalyptic number.

It is an amenable number.

2550391265 is a deficient number, since it is larger than the sum of its proper divisors (632308255).

2550391265 is a wasteful number, since it uses less digits than its factorization.

2550391265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 2550391265 is about 50501.3986439980. The cubic root of 2550391265 is about 1366.2670796568.

The spelling of 2550391265 in words is "two billion, five hundred fifty million, three hundred ninety-one thousand, two hundred sixty-five".