2544422251 has 16 divisors (see below), whose sum is σ = 2968213248. Its totient is φ = 2135858400.

The previous prime is 2544422201. The next prime is 2544422261. The reversal of 2544422251 is 1522244452.

It is a cyclic number.

It is not a de Polignac number, because 2544422251 - 2²¹ = 2542325099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2544422201) 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, 205836 + ... + 217846.

It is an arithmetic number, because the mean of its divisors is an integer number (185513328).

Almost surely, 2^2544422251 is an apocalyptic number.

2544422251 is a deficient number, since it is larger than the sum of its proper divisors (423790997).

2544422251 is a wasteful number, since it uses less digits than its factorization.

2544422251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12642.

The product of its digits is 25600, while the sum is 31.

The square root of 2544422251 is about 50442.2665133120. The cubic root of 2544422251 is about 1365.2003625609.

The spelling of 2544422251 in words is "two billion, five hundred forty-four million, four hundred twenty-two thousand, two hundred fifty-one".