2554551623 has 16 divisors (see below), whose sum is σ = 2848161120. Its totient is φ = 2274943104.

The previous prime is 2554551619. The next prime is 2554551641. The reversal of 2554551623 is 3261554552.

It is a cyclic number.

It is not a de Polignac number, because 2554551623 - 2² = 2554551619 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 (2554551613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783665 + ... + 786917.

It is an arithmetic number, because the mean of its divisors is an integer number (178010070).

Almost surely, 2^2554551623 is an apocalyptic number.

2554551623 is a deficient number, since it is larger than the sum of its proper divisors (293609497).

2554551623 is a wasteful number, since it uses less digits than its factorization.

2554551623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5378.

The product of its digits is 180000, while the sum is 38.

The square root of 2554551623 is about 50542.5723821018. The cubic root of 2554551623 is about 1367.0095895434.

The spelling of 2554551623 in words is "two billion, five hundred fifty-four million, five hundred fifty-one thousand, six hundred twenty-three".