7255791745 has 4 divisors (see below), whose sum is σ = 8706950100. Its totient is φ = 5804633392.

The previous prime is 7255791737. The next prime is 7255791791. The reversal of 7255791745 is 5471975527.

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 5718838129 + 1536953616 = 75623^2 + 39204^2 .

It is a cyclic number.

It is not a de Polignac number, because 7255791745 - 2³ = 7255791737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7255791692 and 7255791701.

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, 725579170 + ... + 725579179.

It is an arithmetic number, because the mean of its divisors is an integer number (2176737525).

Almost surely, 2^7255791745 is an apocalyptic number.

It is an amenable number.

7255791745 is a deficient number, since it is larger than the sum of its proper divisors (1451158355).

7255791745 is a wasteful number, since it uses less digits than its factorization.

7255791745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451158354.

The product of its digits is 3087000, while the sum is 52.

The square root of 7255791745 is about 85180.9353376681. The cubic root of 7255791745 is about 1935.9535654438.

The spelling of 7255791745 in words is "seven billion, two hundred fifty-five million, seven hundred ninety-one thousand, seven hundred forty-five".