2551242355 has 4 divisors (see below), whose sum is σ = 3061490832. Its totient is φ = 2040993880.

The previous prime is 2551242313. The next prime is 2551242367. The reversal of 2551242355 is 5532421552.

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

It is not a de Polignac number, because 2551242355 - 2²⁵ = 2517687923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2551242355.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255124231 + ... + 255124240.

It is an arithmetic number, because the mean of its divisors is an integer number (765372708).

Almost surely, 2^2551242355 is an apocalyptic number.

2551242355 is a deficient number, since it is larger than the sum of its proper divisors (510248477).

2551242355 is an equidigital number, since it uses as much as digits as its factorization.

2551242355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510248476.

The product of its digits is 60000, while the sum is 34.

The square root of 2551242355 is about 50509.8243414091. The cubic root of 2551242355 is about 1366.4190415592.

The spelling of 2551242355 in words is "two billion, five hundred fifty-one million, two hundred forty-two thousand, three hundred fifty-five".