4778425 has 6 divisors (see below), whose sum is σ = 5925278. Its totient is φ = 3822720.

The previous prime is 4778413. The next prime is 4778429. The reversal of 4778425 is 5248774.

It can be written as a sum of positive squares in 3 ways, for example, as 99856 + 4678569 = 316^2 + 2163^2 .

It is not a de Polignac number, because 4778425 - 2¹⁷ = 4647353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4778429) 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, 95544 + ... + 95593.

Almost surely, 2^4778425 is an apocalyptic number.

It is an amenable number.

4778425 is a deficient number, since it is larger than the sum of its proper divisors (1146853).

4778425 is a wasteful number, since it uses less digits than its factorization.

4778425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191147 (or 191142 counting only the distinct ones).

The product of its digits is 62720, while the sum is 37.

The square root of 4778425 is about 2185.9608871158. The cubic root of 4778425 is about 168.4334165043.

The spelling of 4778425 in words is "four million, seven hundred seventy-eight thousand, four hundred twenty-five".