15428000525 has 24 divisors (see below), whose sum is σ = 21886438464. Its totient is φ = 10568188800.

The previous prime is 15428000521. The next prime is 15428000543. The reversal of 15428000525 is 52500082451.

It is not a de Polignac number, because 15428000525 - 2² = 15428000521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15428000491 and 15428000500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15428000521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124529 + ... + 215321.

It is an arithmetic number, because the mean of its divisors is an integer number (911934936).

Almost surely, 2^15428000525 is an apocalyptic number.

It is an amenable number.

15428000525 is a deficient number, since it is larger than the sum of its proper divisors (6458437939).

15428000525 is an equidigital number, since it uses as much as digits as its factorization.

15428000525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91781 (or 91776 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 15428000525 its reverse (52500082451), we get a palindrome (67928082976).

The spelling of 15428000525 in words is "fifteen billion, four hundred twenty-eight million, five hundred twenty-five", and thus it is an aban number.