2551000550 has 48 divisors (see below), whose sum is σ = 5448556032. Its totient is φ = 870458400.

The previous prime is 2551000547. The next prime is 2551000561. The reversal of 2551000550 is 550001552.

It is a super-2 number, since 2×2551000550² = 13015207612200605000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56579 + ... + 91121.

It is an arithmetic number, because the mean of its divisors is an integer number (113511584).

Almost surely, 2^2551000550 is an apocalyptic number.

2551000550 is an abundant number, since it is smaller than the sum of its proper divisors (2897555482).

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

2551000550 is a wasteful number, since it uses less digits than its factorization.

2551000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34773 (or 34768 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 2551000550 is about 50507.4306414413. The cubic root of 2551000550 is about 1366.3758707755.

The spelling of 2551000550 in words is "two billion, five hundred fifty-one million, five hundred fifty", and thus it is an aban number.