15552401131 has 2 divisors, whose sum is σ = 15552401132. Its totient is φ = 15552401130.

The previous prime is 15552401099. The next prime is 15552401177. The reversal of 15552401131 is 13110425551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15552401131 - 2⁵ = 15552401099 is a prime.

It is a super-2 number, since 2×15552401131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15552401131.

It is not a weakly prime, because it can be changed into another prime (15552407131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7776200565 + 7776200566.

It is an arithmetic number, because the mean of its divisors is an integer number (7776200566).

Almost surely, 2^15552401131 is an apocalyptic number.

15552401131 is a deficient number, since it is larger than the sum of its proper divisors (1).

15552401131 is an equidigital number, since it uses as much as digits as its factorization.

15552401131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 15552401131 its reverse (13110425551), we get a palindrome (28662826682).

The spelling of 15552401131 in words is "fifteen billion, five hundred fifty-two million, four hundred one thousand, one hundred thirty-one".