5256456365 has 4 divisors (see below), whose sum is σ = 6307747644. Its totient is φ = 4205165088.

The previous prime is 5256456347. The next prime is 5256456383. The reversal of 5256456365 is 5636546525.

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

It is an interprime number because it is at equal distance from previous prime (5256456347) and next prime (5256456383).

It can be written as a sum of positive squares in 2 ways, for example, as 662599081 + 4593857284 = 25741^2 + 67778^2 .

It is a cyclic number.

It is not a de Polignac number, because 5256456365 - 2⁶ = 5256456301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525645632 + ... + 525645641.

It is an arithmetic number, because the mean of its divisors is an integer number (1576936911).

Almost surely, 2^5256456365 is an apocalyptic number.

It is an amenable number.

5256456365 is a deficient number, since it is larger than the sum of its proper divisors (1051291279).

5256456365 is a wasteful number, since it uses less digits than its factorization.

5256456365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051291278.

The product of its digits is 3240000, while the sum is 47.

The square root of 5256456365 is about 72501.4231929277. The cubic root of 5256456365 is about 1738.7254908001.

The spelling of 5256456365 in words is "five billion, two hundred fifty-six million, four hundred fifty-six thousand, three hundred sixty-five".