13251252530 has 8 divisors (see below), whose sum is σ = 23852254572. Its totient is φ = 5300501008.

The previous prime is 13251252493. The next prime is 13251252577. The reversal of 13251252530 is 3525215231.

It can be written as a sum of positive squares in 2 ways, for example, as 13007174401 + 244078129 = 114049^2 + 15623^2 .

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

It is a super-2 number, since 2×13251252530² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13251252493 and 13251252502.

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, 662562617 + ... + 662562636.

Almost surely, 2^13251252530 is an apocalyptic number.

13251252530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13251252530 is a deficient number, since it is larger than the sum of its proper divisors (10601002042).

13251252530 is a wasteful number, since it uses less digits than its factorization.

13251252530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325125260.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 13251252530 its reverse (3525215231), we get a palindrome (16776467761).

The spelling of 13251252530 in words is "thirteen billion, two hundred fifty-one million, two hundred fifty-two thousand, five hundred thirty".