2551235433205 has 4 divisors (see below), whose sum is σ = 3061482519852. Its totient is φ = 2040988346560.

The previous prime is 2551235433193. The next prime is 2551235433251. The reversal of 2551235433205 is 5023345321552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 753552469476 + 1797682963729 = 868074^2 + 1340777^2 .

It is not a de Polignac number, because 2551235433205 - 2¹⁵ = 2551235400437 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 255123543316 + ... + 255123543325.

It is an arithmetic number, because the mean of its divisors is an integer number (765370629963).

Almost surely, 2^{2551235433205} is an apocalyptic number.

It is an amenable number.

2551235433205 is a deficient number, since it is larger than the sum of its proper divisors (510247086647).

2551235433205 is an equidigital number, since it uses as much as digits as its factorization.

2551235433205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510247086646.

The product of its (nonzero) digits is 540000, while the sum is 40.

The spelling of 2551235433205 in words is "two trillion, five hundred fifty-one billion, two hundred thirty-five million, four hundred thirty-three thousand, two hundred five".