2649455558 has 4 divisors (see below), whose sum is σ = 3974183340. Its totient is φ = 1324727778.

The previous prime is 2649455519. The next prime is 2649455591. The reversal of 2649455558 is 8555549462.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×2649455558³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662363888 + ... + 662363891.

It is an arithmetic number, because the mean of its divisors is an integer number (993545835).

Almost surely, 2^2649455558 is an apocalyptic number.

2649455558 is a deficient number, since it is larger than the sum of its proper divisors (1324727782).

2649455558 is a wasteful number, since it uses less digits than its factorization.

2649455558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324727781.

The product of its digits is 8640000, while the sum is 53.

The square root of 2649455558 is about 51472.8623451232. The cubic root of 2649455558 is about 1383.7327281205.

The spelling of 2649455558 in words is "two billion, six hundred forty-nine million, four hundred fifty-five thousand, five hundred fifty-eight".