15534530201 has 4 divisors (see below), whose sum is σ = 15548027904. Its totient is φ = 15521032500.

The previous prime is 15534530197. The next prime is 15534530237. The reversal of 15534530201 is 10203543551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15534530201 - 2² = 15534530197 is a prime.

It is a super-2 number, since 2×15534530201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15534530281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6747125 + ... + 6749426.

It is an arithmetic number, because the mean of its divisors is an integer number (3887006976).

Almost surely, 2^15534530201 is an apocalyptic number.

It is an amenable number.

15534530201 is a deficient number, since it is larger than the sum of its proper divisors (13497703).

15534530201 is a wasteful number, since it uses less digits than its factorization.

15534530201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13497702.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 15534530201 in words is "fifteen billion, five hundred thirty-four million, five hundred thirty thousand, two hundred one".