13516235025 has 12 divisors (see below), whose sum is σ = 22346842032. Its totient is φ = 7208658640.

The previous prime is 13516235023. The next prime is 13516235027. The reversal of 13516235025 is 52053261531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13516235023) and next prime (13516235027).

It is not a de Polignac number, because 13516235025 - 2¹ = 13516235023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13516235023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90108159 + ... + 90108308.

It is an arithmetic number, because the mean of its divisors is an integer number (1862236836).

Almost surely, 2^13516235025 is an apocalyptic number.

13516235025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13516235025 is a deficient number, since it is larger than the sum of its proper divisors (8830607007).

13516235025 is a wasteful number, since it uses less digits than its factorization.

13516235025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180216480 (or 180216475 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 13516235025 its reverse (52053261531), we get a palindrome (65569496556).

The spelling of 13516235025 in words is "thirteen billion, five hundred sixteen million, two hundred thirty-five thousand, twenty-five".