2554666615 has 4 divisors (see below), whose sum is σ = 3065599944. Its totient is φ = 2043733288.

The previous prime is 2554666589. The next prime is 2554666633. The reversal of 2554666615 is 5166664552.

2554666615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2554666615 - 2²⁵ = 2521112183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255466657 + ... + 255466666.

It is an arithmetic number, because the mean of its divisors is an integer number (766399986).

Almost surely, 2^2554666615 is an apocalyptic number.

2554666615 is a deficient number, since it is larger than the sum of its proper divisors (510933329).

2554666615 is an equidigital number, since it uses as much as digits as its factorization.

2554666615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510933328.

The product of its digits is 1296000, while the sum is 46.

The square root of 2554666615 is about 50543.7099449575. The cubic root of 2554666615 is about 1367.0301010110.

The spelling of 2554666615 in words is "two billion, five hundred fifty-four million, six hundred sixty-six thousand, six hundred fifteen".