15271134552 has 256 divisors, whose sum is σ = 44635852800. Its totient is φ = 4833561600.

The previous prime is 15271134547. The next prime is 15271134553. The reversal of 15271134552 is 25543117251.

15271134552 is a `hidden beast` number, since 1 + 5 + 2 + 71 + 1 + 34 + 552 = 666.

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 (15271134553) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68480313 + ... + 68480535.

It is an arithmetic number, because the mean of its divisors is an integer number (174358800).

Almost surely, 2^15271134552 is an apocalyptic number.

15271134552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15271134552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22317926400).

15271134552 is an abundant number, since it is smaller than the sum of its proper divisors (29364718248).

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

15271134552 is a wasteful number, since it uses less digits than its factorization.

15271134552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 445 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The spelling of 15271134552 in words is "fifteen billion, two hundred seventy-one million, one hundred thirty-four thousand, five hundred fifty-two".