1504405225 has 12 divisors (see below), whose sum is σ = 1975196124. Its totient is φ = 1132728320.

The previous prime is 1504405223. The next prime is 1504405289. The reversal of 1504405225 is 5225044051.

It can be written as a sum of positive squares in 6 ways, for example, as 6095961 + 1498309264 = 2469^2 + 38708^2 .

It is not a de Polignac number, because 1504405225 - 2¹ = 1504405223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1504405193 and 1504405202.

It is not an unprimeable number, because it can be changed into a prime (1504405223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1769464 + ... + 1770313.

It is an arithmetic number, because the mean of its divisors is an integer number (164599677).

Almost surely, 2^1504405225 is an apocalyptic number.

It is an amenable number.

1504405225 is a deficient number, since it is larger than the sum of its proper divisors (470790899).

1504405225 is a wasteful number, since it uses less digits than its factorization.

1504405225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539804 (or 3539799 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 1504405225 is about 38786.6629784002. The cubic root of 1504405225 is about 1145.8337526243.

Adding to 1504405225 its reverse (5225044051), we get a palindrome (6729449276).

The spelling of 1504405225 in words is "one billion, five hundred four million, four hundred five thousand, two hundred twenty-five".