15525311511132 has 36 divisors (see below), whose sum is σ = 39337754897896. Its totient is φ = 5162811423840.

The previous prime is 15525311511131. The next prime is 15525311511187. The reversal of 15525311511132 is 23111511352551.

15525311511132 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 5 + 3 + 1 + 1 + 511 + 132 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15525311511131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512168518 + ... + 512198829.

Almost surely, 2^{15525311511132} is an apocalyptic number.

15525311511132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15525311511132 is an abundant number, since it is smaller than the sum of its proper divisors (23812443386764).

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

15525311511132 is a wasteful number, since it uses less digits than its factorization.

15525311511132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024367778 (or 1024367773 counting only the distinct ones).

The product of its digits is 22500, while the sum is 36.

Adding to 15525311511132 its reverse (23111511352551), we get a palindrome (38636822863683).

The spelling of 15525311511132 in words is "fifteen trillion, five hundred twenty-five billion, three hundred eleven million, five hundred eleven thousand, one hundred thirty-two".