2551570747 has 4 divisors (see below), whose sum is σ = 2783531736. Its totient is φ = 2319609760.

The previous prime is 2551570739. The next prime is 2551570823. The reversal of 2551570747 is 7470751552.

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

It is a cyclic number.

It is not a de Polignac number, because 2551570747 - 2³ = 2551570739 is a prime.

It is a super-2 number, since 2×2551570747² = 13021026553892276018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551574747) 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, 115980478 + ... + 115980499.

It is an arithmetic number, because the mean of its divisors is an integer number (695882934).

Almost surely, 2^2551570747 is an apocalyptic number.

2551570747 is a deficient number, since it is larger than the sum of its proper divisors (231960989).

2551570747 is a wasteful number, since it uses less digits than its factorization.

2551570747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231960988.

The product of its (nonzero) digits is 343000, while the sum is 43.

The square root of 2551570747 is about 50513.0750103377. The cubic root of 2551570747 is about 1366.4776668311.

The spelling of 2551570747 in words is "two billion, five hundred fifty-one million, five hundred seventy thousand, seven hundred forty-seven".