2611564255 has 8 divisors (see below), whose sum is σ = 3157800624. Its totient is φ = 2073302400.

The previous prime is 2611564243. The next prime is 2611564283. The reversal of 2611564255 is 5524651162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2611564255 - 2⁵ = 2611564223 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 7 ways as a sum of consecutive naturals, for example, 1992906 + ... + 1994215.

It is an arithmetic number, because the mean of its divisors is an integer number (394725078).

Almost surely, 2^2611564255 is an apocalyptic number.

2611564255 is a deficient number, since it is larger than the sum of its proper divisors (546236369).

2611564255 is a wasteful number, since it uses less digits than its factorization.

2611564255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987257.

The product of its digits is 72000, while the sum is 37.

The square root of 2611564255 is about 51103.4661740278. The cubic root of 2611564255 is about 1377.1045246862.

The spelling of 2611564255 in words is "two billion, six hundred eleven million, five hundred sixty-four thousand, two hundred fifty-five".