13525540215 has 32 divisors (see below), whose sum is σ = 23613465600. Its totient is φ = 6556379520.

The previous prime is 13525540199. The next prime is 13525540267. The reversal of 13525540215 is 51204552531.

It is not a de Polignac number, because 13525540215 - 2⁴ = 13525540199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1326306 + ... + 1336464.

It is an arithmetic number, because the mean of its divisors is an integer number (737920800).

Almost surely, 2^13525540215 is an apocalyptic number.

13525540215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13525540215 is a deficient number, since it is larger than the sum of its proper divisors (10087925385).

13525540215 is a wasteful number, since it uses less digits than its factorization.

13525540215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18247.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 13525540215 in words is "thirteen billion, five hundred twenty-five million, five hundred forty thousand, two hundred fifteen".