2551105807 has 4 divisors (see below), whose sum is σ = 2551481856. Its totient is φ = 2550729760.

The previous prime is 2551105787. The next prime is 2551105819. The reversal of 2551105807 is 7085011552.

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-2551105807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551165807) 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, 177658 + ... + 191479.

It is an arithmetic number, because the mean of its divisors is an integer number (637870464).

Almost surely, 2^2551105807 is an apocalyptic number.

2551105807 is a deficient number, since it is larger than the sum of its proper divisors (376049).

2551105807 is an equidigital number, since it uses as much as digits as its factorization.

2551105807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376048.

The product of its (nonzero) digits is 14000, while the sum is 34.

The square root of 2551105807 is about 50508.4726258872. The cubic root of 2551105807 is about 1366.3946632250.

The spelling of 2551105807 in words is "two billion, five hundred fifty-one million, one hundred five thousand, eight hundred seven".