25464534613 has 8 divisors (see below), whose sum is σ = 29138304960. Its totient is φ = 21799759200.

The previous prime is 25464534611. The next prime is 25464534643. The reversal of 25464534613 is 31643546452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25464534613 - 2¹ = 25464534611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25464534613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25464534611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2242663 + ... + 2253988.

It is an arithmetic number, because the mean of its divisors is an integer number (3642288120).

Almost surely, 2^25464534613 is an apocalyptic number.

It is an amenable number.

25464534613 is a deficient number, since it is larger than the sum of its proper divisors (3673770347).

25464534613 is an equidigital number, since it uses as much as digits as its factorization.

25464534613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497467.

The product of its digits is 1036800, while the sum is 43.

The spelling of 25464534613 in words is "twenty-five billion, four hundred sixty-four million, five hundred thirty-four thousand, six hundred thirteen".