15171502052 has 288 divisors, whose sum is σ = 36150804480. Its totient is φ = 5429825280.

The previous prime is 15171502037. The next prime is 15171502057. The reversal of 15171502052 is 25020517151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15171502057) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 322797893 + ... + 322797939.

Almost surely, 2^15171502052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15171502052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18075402240).

15171502052 is an abundant number, since it is smaller than the sum of its proper divisors (20979302428).

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

15171502052 is a wasteful number, since it uses less digits than its factorization.

15171502052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 29.

The spelling of 15171502052 in words is "fifteen billion, one hundred seventy-one million, five hundred two thousand, fifty-two".