2551749933 has 16 divisors (see below), whose sum is σ = 3521436480. Its totient is φ = 1641674496.

The previous prime is 2551749931. The next prime is 2551749947. The reversal of 2551749933 is 3399471552.

It is not a de Polignac number, because 2551749933 - 2¹ = 2551749931 is a prime.

It is a super-2 number, since 2×2551749933² = 13022855441131008978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551749931) 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, 197941 + ... + 210437.

It is an arithmetic number, because the mean of its divisors is an integer number (220089780).

Almost surely, 2^2551749933 is an apocalyptic number.

It is an amenable number.

2551749933 is a deficient number, since it is larger than the sum of its proper divisors (969686547).

2551749933 is a wasteful number, since it uses less digits than its factorization.

2551749933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14876.

The product of its digits is 1020600, while the sum is 48.

The square root of 2551749933 is about 50514.8486387913. The cubic root of 2551749933 is about 1366.5096533941.

The spelling of 2551749933 in words is "two billion, five hundred fifty-one million, seven hundred forty-nine thousand, nine hundred thirty-three".