2555555531 has 4 divisors (see below), whose sum is σ = 2560891200. Its totient is φ = 2550219864.

The previous prime is 2555555477. The next prime is 2555555591. The reversal of 2555555531 is 1355555552.

2555555531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2555555531 is a prime.

It is a super-2 number, since 2×2555555531² = 13061728144049383922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555555591) 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, 2667116 + ... + 2668073.

It is an arithmetic number, because the mean of its divisors is an integer number (640222800).

Almost surely, 2^2555555531 is an apocalyptic number.

2555555531 is a deficient number, since it is larger than the sum of its proper divisors (5335669).

2555555531 is an equidigital number, since it uses as much as digits as its factorization.

2555555531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335668.

The product of its digits is 468750, while the sum is 41.

The square root of 2555555531 is about 50552.5027174719. The cubic root of 2555555531 is about 1367.1886388551.

The spelling of 2555555531 in words is "two billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred thirty-one".