2555642707 has 4 divisors (see below), whose sum is σ = 2593786696. Its totient is φ = 2517498720.

The previous prime is 2555642701. The next prime is 2555642711. The reversal of 2555642707 is 7072465552.

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 2555642707 - 2³ = 2555642699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555642701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19071894 + ... + 19072027.

It is an arithmetic number, because the mean of its divisors is an integer number (648446674).

Almost surely, 2^2555642707 is an apocalyptic number.

2555642707 is a deficient number, since it is larger than the sum of its proper divisors (38143989).

2555642707 is an equidigital number, since it uses as much as digits as its factorization.

2555642707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38143988.

The product of its (nonzero) digits is 588000, while the sum is 43.

The square root of 2555642707 is about 50553.3649424052. The cubic root of 2555642707 is about 1367.2041846833.

The spelling of 2555642707 in words is "two billion, five hundred fifty-five million, six hundred forty-two thousand, seven hundred seven".