2549518998 has 16 divisors (see below), whose sum is σ = 5491271856. Its totient is φ = 784467360.

The previous prime is 2549518991. The next prime is 2549519029. The reversal of 2549518998 is 8998159452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549518991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16342993 + ... + 16343148.

It is an arithmetic number, because the mean of its divisors is an integer number (343204491).

Almost surely, 2^2549518998 is an apocalyptic number.

2549518998 is an abundant number, since it is smaller than the sum of its proper divisors (2941752858).

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

2549518998 is a wasteful number, since it uses less digits than its factorization.

2549518998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32686159.

The product of its digits is 9331200, while the sum is 60.

The square root of 2549518998 is about 50492.7618377129. The cubic root of 2549518998 is about 1366.1113015227. Note that the first 3 decimals are identical.

The spelling of 2549518998 in words is "two billion, five hundred forty-nine million, five hundred eighteen thousand, nine hundred ninety-eight".