15245053533 has 12 divisors (see below), whose sum is σ = 22038742908. Its totient is φ = 10155010560.

The previous prime is 15245053451. The next prime is 15245053543. The reversal of 15245053533 is 33535054251.

15245053533 is a `hidden beast` number, since 1 + 5 + 24 + 50 + 53 + 533 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10854930969 + 4390122564 = 104187^2 + 66258^2 .

It is not a de Polignac number, because 15245053533 - 2⁸ = 15245053277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15245053543) 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, 684978 + ... + 706883.

It is an arithmetic number, because the mean of its divisors is an integer number (1836561909).

Almost surely, 2^15245053533 is an apocalyptic number.

It is an amenable number.

15245053533 is a deficient number, since it is larger than the sum of its proper divisors (6793689375).

15245053533 is a wasteful number, since it uses less digits than its factorization.

15245053533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393084 (or 1393081 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The spelling of 15245053533 in words is "fifteen billion, two hundred forty-five million, fifty-three thousand, five hundred thirty-three".