2551499000 has 32 divisors (see below), whose sum is σ = 5970510000. Its totient is φ = 1020599200.

The previous prime is 2551498991. The next prime is 2551499029. The reversal of 2551499000 is 9941552.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1274750 + ... + 1276749.

Almost surely, 2^2551499000 is an apocalyptic number.

2551499000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2551499000 is an abundant number, since it is smaller than the sum of its proper divisors (3419011000).

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

2551499000 is a wasteful number, since it uses less digits than its factorization.

2551499000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551520 (or 2551506 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 2551499000 is about 50512.3648228827. The cubic root of 2551499000 is about 1366.4648588262.

The spelling of 2551499000 in words is "two billion, five hundred fifty-one million, four hundred ninety-nine thousand".