2551593555 has 96 divisors (see below), whose sum is σ = 5364463104. Its totient is φ = 1139152896.

The previous prime is 2551593521. The next prime is 2551593571. The reversal of 2551593555 is 5553951552.

2551593555 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 5 + 93 + 555 = 666.

It is not a de Polignac number, because 2551593555 - 2¹⁶ = 2551528019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2551593555.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 362227 + ... + 369203.

It is an arithmetic number, because the mean of its divisors is an integer number (55879824).

Almost surely, 2^2551593555 is an apocalyptic number.

2551593555 is an abundant number, since it is smaller than the sum of its proper divisors (2812869549).

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

2551593555 is an equidigital number, since it uses as much as digits as its factorization.

2551593555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7047 (or 7035 counting only the distinct ones).

The product of its digits is 843750, while the sum is 45.

The square root of 2551593555 is about 50513.3007731627. The cubic root of 2551593555 is about 1366.4817383793.

The spelling of 2551593555 in words is "two billion, five hundred fifty-one million, five hundred ninety-three thousand, five hundred fifty-five".