2555011623 has 4 divisors (see below), whose sum is σ = 3406682168. Its totient is φ = 1703341080.

The previous prime is 2555011619. The next prime is 2555011633. The reversal of 2555011623 is 3261105552.

It is a happy number.

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

It is not a de Polignac number, because 2555011623 - 2² = 2555011619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555011633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425835268 + ... + 425835273.

It is an arithmetic number, because the mean of its divisors is an integer number (851670542).

Almost surely, 2^2555011623 is an apocalyptic number.

2555011623 is a deficient number, since it is larger than the sum of its proper divisors (851670545).

2555011623 is an equidigital number, since it uses as much as digits as its factorization.

2555011623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851670544.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2555011623 is about 50547.1227964560. The cubic root of 2555011623 is about 1367.0916374281.

It can be divided in two parts, 25550 and 11623, that added together give a palindrome (37173).

The spelling of 2555011623 in words is "two billion, five hundred fifty-five million, eleven thousand, six hundred twenty-three".