15530345253 has 12 divisors (see below), whose sum is σ = 22650515680. Its totient is φ = 10253042856.

The previous prime is 15530345209. The next prime is 15530345261. The reversal of 15530345253 is 35254303551.

15530345253 is a `hidden beast` number, since 1 + 553 + 0 + 3 + 4 + 52 + 53 = 666.

It is not a de Polignac number, because 15530345253 - 2¹⁰ = 15530344229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15530345293) 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, 8375743 + ... + 8377596.

Almost surely, 2^15530345253 is an apocalyptic number.

It is an amenable number.

15530345253 is a deficient number, since it is larger than the sum of its proper divisors (7120170427).

15530345253 is a wasteful number, since it uses less digits than its factorization.

15530345253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16753448 (or 16753445 counting only the distinct ones).

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

The spelling of 15530345253 in words is "fifteen billion, five hundred thirty million, three hundred forty-five thousand, two hundred fifty-three".