15552125447 has 2 divisors, whose sum is σ = 15552125448. Its totient is φ = 15552125446.

The previous prime is 15552125443. The next prime is 15552125509. The reversal of 15552125447 is 74452125551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15552125447 - 2² = 15552125443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15552125443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7776062723 + 7776062724.

It is an arithmetic number, because the mean of its divisors is an integer number (7776062724).

Almost surely, 2^15552125447 is an apocalyptic number.

15552125447 is a deficient number, since it is larger than the sum of its proper divisors (1).

15552125447 is an equidigital number, since it uses as much as digits as its factorization.

15552125447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 280000, while the sum is 41.

The spelling of 15552125447 in words is "fifteen billion, five hundred fifty-two million, one hundred twenty-five thousand, four hundred forty-seven".