2555615670 has 32 divisors (see below), whose sum is σ = 6156298080. Its totient is φ = 678961920.

The previous prime is 2555615663. The next prime is 2555615681. The reversal of 2555615670 is 765165552.

It is a happy number.

2555615670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150271 + ... + 166410.

It is an arithmetic number, because the mean of its divisors is an integer number (192384315).

Almost surely, 2^2555615670 is an apocalyptic number.

2555615670 is an abundant number, since it is smaller than the sum of its proper divisors (3600682410).

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

2555615670 is a wasteful number, since it uses less digits than its factorization.

2555615670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316960.

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 2555615670 is about 50553.0975312097. The cubic root of 2555615670 is about 1367.1993632960.

The spelling of 2555615670 in words is "two billion, five hundred fifty-five million, six hundred fifteen thousand, six hundred seventy".