2251854855 has 12 divisors (see below), whose sum is σ = 3903215160. Its totient is φ = 1200989232.

The previous prime is 2251854851. The next prime is 2251854877. The reversal of 2251854855 is 5584581522.

2251854855 is a `hidden beast` number, since 2 + 2 + 51 + 8 + 548 + 55 = 666.

It is not a de Polignac number, because 2251854855 - 2² = 2251854851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 50041219 = 2251854855 / (2 + 2 + 5 + 1 + 8 + 5 + 4 + 8 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 2251854855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251854851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25020565 + ... + 25020654.

It is an arithmetic number, because the mean of its divisors is an integer number (325267930).

Almost surely, 2^2251854855 is an apocalyptic number.

2251854855 is a deficient number, since it is larger than the sum of its proper divisors (1651360305).

2251854855 is a wasteful number, since it uses less digits than its factorization.

2251854855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50041230 (or 50041227 counting only the distinct ones).

The product of its digits is 640000, while the sum is 45.

The square root of 2251854855 is about 47453.7127630705. The cubic root of 2251854855 is about 1310.7306793336.

The spelling of 2251854855 in words is "two billion, two hundred fifty-one million, eight hundred fifty-four thousand, eight hundred fifty-five".