7251424265 has 4 divisors (see below), whose sum is σ = 8701709124. Its totient is φ = 5801139408.

The previous prime is 7251424249. The next prime is 7251424289. The reversal of 7251424265 is 5624241527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5624241527 = 29 ⋅193939363.

It can be written as a sum of positive squares in 2 ways, for example, as 1806165001 + 5445259264 = 42499^2 + 73792^2 .

It is a cyclic number.

It is not a de Polignac number, because 7251424265 - 2⁴ = 7251424249 is a prime.

It is a Duffinian 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, 725142422 + ... + 725142431.

It is an arithmetic number, because the mean of its divisors is an integer number (2175427281).

Almost surely, 2^7251424265 is an apocalyptic number.

It is an amenable number.

7251424265 is a deficient number, since it is larger than the sum of its proper divisors (1450284859).

7251424265 is a wasteful number, since it uses less digits than its factorization.

7251424265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450284858.

The product of its digits is 134400, while the sum is 38.

The square root of 7251424265 is about 85155.2949909752. The cubic root of 7251424265 is about 1935.5650511906.

The spelling of 7251424265 in words is "seven billion, two hundred fifty-one million, four hundred twenty-four thousand, two hundred sixty-five".