2544162261 has 4 divisors (see below), whose sum is σ = 3392216352. Its totient is φ = 1696108172.

The previous prime is 2544162253. The next prime is 2544162287. The reversal of 2544162261 is 1622614452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2544162261 - 2³ = 2544162253 is a prime.

It is a super-2 number, since 2×2544162261² = 12945523220593264242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544162161) 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, 424027041 + ... + 424027046.

It is an arithmetic number, because the mean of its divisors is an integer number (848054088).

Almost surely, 2^2544162261 is an apocalyptic number.

It is an amenable number.

2544162261 is a deficient number, since it is larger than the sum of its proper divisors (848054091).

2544162261 is an equidigital number, since it uses as much as digits as its factorization.

2544162261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848054090.

The product of its digits is 23040, while the sum is 33.

The square root of 2544162261 is about 50439.6893428181. The cubic root of 2544162261 is about 1365.1538620856.

The spelling of 2544162261 in words is "two billion, five hundred forty-four million, one hundred sixty-two thousand, two hundred sixty-one".