15325420425 has 192 divisors, whose sum is σ = 31544647680. Its totient is φ = 6409912320.

The previous prime is 15325420403. The next prime is 15325420427. The reversal of 15325420425 is 52402452351.

It is a happy number.

It is not a de Polignac number, because 15325420425 - 2⁸ = 15325420169 is a prime.

It is a super-2 number, since 2×15325420425² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15325420427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 45475857 + ... + 45476193.

It is an arithmetic number, because the mean of its divisors is an integer number (164295040).

Almost surely, 2^15325420425 is an apocalyptic number.

15325420425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15325420425 is an abundant number, since it is smaller than the sum of its proper divisors (16219227255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15325420425 is a wasteful number, since it uses less digits than its factorization.

15325420425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 15325420425 its reverse (52402452351), we get a palindrome (67727872776).

The spelling of 15325420425 in words is "fifteen billion, three hundred twenty-five million, four hundred twenty thousand, four hundred twenty-five".