13525784055 has 64 divisors (see below), whose sum is σ = 27539251200. Its totient is φ = 6170100480.

The previous prime is 13525784053. The next prime is 13525784101. The reversal of 13525784055 is 55048752531.

13525784055 is a `hidden beast` number, since 1 + 3 + 525 + 78 + 4 + 0 + 55 = 666.

It is not a de Polignac number, because 13525784055 - 2¹ = 13525784053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13525784055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525784053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 437715 + ... + 467595.

It is an arithmetic number, because the mean of its divisors is an integer number (430300800).

Almost surely, 2^13525784055 is an apocalyptic number.

13525784055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13525784055 is an abundant number, since it is smaller than the sum of its proper divisors (14013467145).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13525784055 is a wasteful number, since it uses less digits than its factorization.

13525784055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30381 (or 30375 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The spelling of 13525784055 in words is "thirteen billion, five hundred twenty-five million, seven hundred eighty-four thousand, fifty-five".