23525345513 has 8 divisors (see below), whose sum is σ = 24400389000. Its totient is φ = 22662892800.

The previous prime is 23525345509. The next prime is 23525345521. The reversal of 23525345513 is 31554352532.

It can be written as a sum of positive squares in 4 ways, for example, as 19029374809 + 4495970704 = 137947^2 + 67052^2 .

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 23525345513 - 2² = 23525345509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23525345593) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3143888 + ... + 3151361.

It is an arithmetic number, because the mean of its divisors is an integer number (3050048625).

Almost surely, 2^23525345513 is an apocalyptic number.

It is an amenable number.

23525345513 is a deficient number, since it is larger than the sum of its proper divisors (875043487).

23525345513 is a wasteful number, since it uses less digits than its factorization.

23525345513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6295387.

The product of its digits is 270000, while the sum is 38.

The spelling of 23525345513 in words is "twenty-three billion, five hundred twenty-five million, three hundred forty-five thousand, five hundred thirteen".