225015425 has 24 divisors (see below), whose sum is σ = 283886592. Its totient is φ = 176904000.

The previous prime is 225015377. The next prime is 225015433. The reversal of 225015425 is 524510522.

225015425 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 225015425 - 2⁸ = 225015169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225015394 and 225015403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415655 + ... + 416195.

It is an arithmetic number, because the mean of its divisors is an integer number (11828608).

Almost surely, 2^225015425 is an apocalyptic number.

225015425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225015425 is a deficient number, since it is larger than the sum of its proper divisors (58871167).

225015425 is a wasteful number, since it uses less digits than its factorization.

225015425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 225015425 is about 15000.5141578547. The cubic root of 225015425 is about 608.2340981976.

Adding to 225015425 its reverse (524510522), we get a palindrome (749525947).

The spelling of 225015425 in words is "two hundred twenty-five million, fifteen thousand, four hundred twenty-five".