15532431413 has 2 divisors, whose sum is σ = 15532431414. Its totient is φ = 15532431412.

The previous prime is 15532431377. The next prime is 15532431419. The reversal of 15532431413 is 31413423551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8675432164 + 6856999249 = 93142^2 + 82807^2 .

It is a cyclic number.

It is not a de Polignac number, because 15532431413 - 2³⁰ = 14458689589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15532431413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15532431419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7766215706 + 7766215707.

It is an arithmetic number, because the mean of its divisors is an integer number (7766215707).

Almost surely, 2^15532431413 is an apocalyptic number.

It is an amenable number.

15532431413 is a deficient number, since it is larger than the sum of its proper divisors (1).

15532431413 is an equidigital number, since it uses as much as digits as its factorization.

15532431413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 32.

Adding to 15532431413 its reverse (31413423551), we get a palindrome (46945854964).

The spelling of 15532431413 in words is "fifteen billion, five hundred thirty-two million, four hundred thirty-one thousand, four hundred thirteen".