7578425 has 12 divisors (see below), whose sum is σ = 9722220. Its totient is φ = 5853120.

The previous prime is 7578407. The next prime is 7578427. The reversal of 7578425 is 5248757.

7578425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 283024 + 7295401 = 532^2 + 2701^2 .

It is not a de Polignac number, because 7578425 - 2¹⁴ = 7562041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7578427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4502 + ... + 5951.

It is an arithmetic number, because the mean of its divisors is an integer number (810185).

Almost surely, 2^7578425 is an apocalyptic number.

It is an amenable number.

7578425 is a deficient number, since it is larger than the sum of its proper divisors (2143795).

7578425 is a wasteful number, since it uses less digits than its factorization.

7578425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10492 (or 10487 counting only the distinct ones).

The product of its digits is 78400, while the sum is 38.

The square root of 7578425 is about 2752.8939318470. The cubic root of 7578425 is about 196.4232921053.

The spelling of 7578425 in words is "seven million, five hundred seventy-eight thousand, four hundred twenty-five".