15532011109 has 2 divisors, whose sum is σ = 15532011110. Its totient is φ = 15532011108.

The previous prime is 15532011059. The next prime is 15532011169. The reversal of 15532011109 is 90111023551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15194260225 + 337750884 = 123265^2 + 18378^2 .

It is an emirp because it is prime and its reverse (90111023551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15532011109 - 2¹⁷ = 15531880037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15532011169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7766005554 + 7766005555.

It is an arithmetic number, because the mean of its divisors is an integer number (7766005555).

Almost surely, 2^15532011109 is an apocalyptic number.

It is an amenable number.

15532011109 is a deficient number, since it is larger than the sum of its proper divisors (1).

15532011109 is an equidigital number, since it uses as much as digits as its factorization.

15532011109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 28.

The spelling of 15532011109 in words is "fifteen billion, five hundred thirty-two million, eleven thousand, one hundred nine".