13545150525 has 72 divisors (see below), whose sum is σ = 24932065704. Its totient is φ = 7025356800.

The previous prime is 13545150491. The next prime is 13545150533. The reversal of 13545150525 is 52505154531.

13545150525 is a `hidden beast` number, since 1 + 35 + 4 + 51 + 50 + 525 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 3807013401 + 9738137124 = 61701^2 + 98682^2 .

It is not a de Polignac number, because 13545150525 - 2⁷ = 13545150397 is a prime.

It is a super-2 number, since 2×13545150525² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13545150525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3106647 + ... + 3111003.

Almost surely, 2^13545150525 is an apocalyptic number.

13545150525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13545150525 is a deficient number, since it is larger than the sum of its proper divisors (11386915179).

13545150525 is a wasteful number, since it uses less digits than its factorization.

13545150525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751 (or 4743 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 13545150525 in words is "thirteen billion, five hundred forty-five million, one hundred fifty thousand, five hundred twenty-five".