13525434515 has 16 divisors (see below), whose sum is σ = 17232124032. Its totient is φ = 10156084224.

The previous prime is 13525434469. The next prime is 13525434581. The reversal of 13525434515 is 51543452531.

It is a cyclic number.

It is not a de Polignac number, because 13525434515 - 2¹⁸ = 13525172371 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185594 + ... + 247983.

It is an arithmetic number, because the mean of its divisors is an integer number (1077007752).

Almost surely, 2^13525434515 is an apocalyptic number.

13525434515 is a deficient number, since it is larger than the sum of its proper divisors (3706689517).

13525434515 is a wasteful number, since it uses less digits than its factorization.

13525434515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433966.

The product of its digits is 180000, while the sum is 38.

The spelling of 13525434515 in words is "thirteen billion, five hundred twenty-five million, four hundred thirty-four thousand, five hundred fifteen".