2251255544 has 16 divisors (see below), whose sum is σ = 4222411200. Its totient is φ = 1125279232.

The previous prime is 2251255483. The next prime is 2251255547. The reversal of 2251255544 is 4455521522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251255547) 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, 15017 + ... + 68760.

It is an arithmetic number, because the mean of its divisors is an integer number (263900700).

Almost surely, 2^2251255544 is an apocalyptic number.

It is an amenable number.

2251255544 is a deficient number, since it is larger than the sum of its proper divisors (1971155656).

2251255544 is a wasteful number, since it uses less digits than its factorization.

2251255544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87142 (or 87138 counting only the distinct ones).

The product of its digits is 80000, while the sum is 35.

The square root of 2251255544 is about 47447.3976525584. The cubic root of 2251255544 is about 1310.6143892731.

The spelling of 2251255544 in words is "two billion, two hundred fifty-one million, two hundred fifty-five thousand, five hundred forty-four".