2555551554 has 16 divisors (see below), whose sum is σ = 5411756448. Its totient is φ = 801741632.

The previous prime is 2555551553. The next prime is 2555551561. The reversal of 2555551554 is 4551555552.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2555551553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12527112 + ... + 12527315.

It is an arithmetic number, because the mean of its divisors is an integer number (338234778).

Almost surely, 2^2555551554 is an apocalyptic number.

2555551554 is an abundant number, since it is smaller than the sum of its proper divisors (2856204894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2555551554 is a wasteful number, since it uses less digits than its factorization.

2555551554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25054449.

The product of its digits is 625000, while the sum is 42.

The square root of 2555551554 is about 50552.4633821142. The cubic root of 2555551554 is about 1367.1879296405.

The spelling of 2555551554 in words is "two billion, five hundred fifty-five million, five hundred fifty-one thousand, five hundred fifty-four".