478481825 has 6 divisors (see below), whose sum is σ = 593317494. Its totient is φ = 382785440.

The previous prime is 478481821. The next prime is 478481831. The reversal of 478481825 is 528184874.

It can be written as a sum of positive squares in 3 ways, for example, as 2849344 + 475632481 = 1688^2 + 21809^2 .

It is not a de Polignac number, because 478481825 - 2² = 478481821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478481825.

It is not an unprimeable number, because it can be changed into a prime (478481821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9569612 + ... + 9569661.

It is an arithmetic number, because the mean of its divisors is an integer number (98886249).

Almost surely, 2^478481825 is an apocalyptic number.

It is an amenable number.

478481825 is a deficient number, since it is larger than the sum of its proper divisors (114835669).

478481825 is a wasteful number, since it uses less digits than its factorization.

478481825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19139283 (or 19139278 counting only the distinct ones).

The product of its digits is 573440, while the sum is 47.

The square root of 478481825 is about 21874.2274149283. The cubic root of 478481825 is about 782.1471766604.

The spelling of 478481825 in words is "four hundred seventy-eight million, four hundred eighty-one thousand, eight hundred twenty-five".