15500406139 has 2 divisors, whose sum is σ = 15500406140. Its totient is φ = 15500406138.

The previous prime is 15500406091. The next prime is 15500406161. The reversal of 15500406139 is 93160400551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15500406139 - 2¹¹ = 15500404091 is a prime.

It is not a weakly prime, because it can be changed into another prime (15500406199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7750203069 + 7750203070.

It is an arithmetic number, because the mean of its divisors is an integer number (7750203070).

Almost surely, 2^15500406139 is an apocalyptic number.

15500406139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15500406139 is an equidigital number, since it uses as much as digits as its factorization.

15500406139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 15500406139 in words is "fifteen billion, five hundred million, four hundred six thousand, one hundred thirty-nine".