15289438925 has 6 divisors (see below), whose sum is σ = 18958904298. Its totient is φ = 12231551120.

The previous prime is 15289438907. The next prime is 15289438933. The reversal of 15289438925 is 52983498251.

It can be written as a sum of positive squares in 3 ways, for example, as 1209717961 + 14079720964 = 34781^2 + 118658^2 .

It is not a de Polignac number, because 15289438925 - 2⁶ = 15289438861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305788754 + ... + 305788803.

It is an arithmetic number, because the mean of its divisors is an integer number (3159817383).

Almost surely, 2^15289438925 is an apocalyptic number.

It is an amenable number.

15289438925 is a deficient number, since it is larger than the sum of its proper divisors (3669465373).

15289438925 is an equidigital number, since it uses as much as digits as its factorization.

15289438925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611577567 (or 611577562 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 56.

The spelling of 15289438925 in words is "fifteen billion, two hundred eighty-nine million, four hundred thirty-eight thousand, nine hundred twenty-five".