3525544123613 has 4 divisors (see below), whose sum is σ = 3573839248668. Its totient is φ = 3477248998560.

The previous prime is 3525544123601. The next prime is 3525544123687. The reversal of 3525544123613 is 3163214455253.

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 2278297416409 + 1247246707204 = 1509403^2 + 1116802^2 .

It is a cyclic number.

It is not a de Polignac number, because 3525544123613 - 2¹⁰ = 3525544122589 is a prime.

It is a super-2 number, since 2×3525544123613² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3525544123513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24147562418 + ... + 24147562563.

It is an arithmetic number, because the mean of its divisors is an integer number (893459812167).

Almost surely, 2^{3525544123613} is an apocalyptic number.

It is an amenable number.

3525544123613 is a deficient number, since it is larger than the sum of its proper divisors (48295125055).

3525544123613 is an equidigital number, since it uses as much as digits as its factorization.

3525544123613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48295125054.

The product of its digits is 1296000, while the sum is 44.

Adding to 3525544123613 its reverse (3163214455253), we get a palindrome (6688758578866).

The spelling of 3525544123613 in words is "three trillion, five hundred twenty-five billion, five hundred forty-four million, one hundred twenty-three thousand, six hundred thirteen".