15001420225 has 12 divisors (see below), whose sum is σ = 20292830640. Its totient is φ = 10910123600.

The previous prime is 15001420207. The next prime is 15001420241. The reversal of 15001420225 is 52202410051.

15001420225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15001420225 - 2¹³ = 15001412033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15001420196 and 15001420205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27275035 + ... + 27275584.

It is an arithmetic number, because the mean of its divisors is an integer number (1691069220).

Almost surely, 2^15001420225 is an apocalyptic number.

It is an amenable number.

15001420225 is a deficient number, since it is larger than the sum of its proper divisors (5291410415).

15001420225 is a wasteful number, since it uses less digits than its factorization.

15001420225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54550640 (or 54550635 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 15001420225 its reverse (52202410051), we get a palindrome (67203830276).

The spelling of 15001420225 in words is "fifteen billion, one million, four hundred twenty thousand, two hundred twenty-five".