8425833425 has 12 divisors (see below), whose sum is σ = 10468103436. Its totient is φ = 6727718400.

The previous prime is 8425833421. The next prime is 8425833463. The reversal of 8425833425 is 5243385248.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 967956544 + 7457876881 = 31112^2 + 86359^2 .

It is not a de Polignac number, because 8425833425 - 2² = 8425833421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8425833421) 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, 310424 + ... + 336473.

It is an arithmetic number, because the mean of its divisors is an integer number (872341953).

Almost surely, 2^8425833425 is an apocalyptic number.

It is an amenable number.

8425833425 is a deficient number, since it is larger than the sum of its proper divisors (2042270011).

8425833425 is a wasteful number, since it uses less digits than its factorization.

8425833425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647428 (or 647423 counting only the distinct ones).

The product of its digits is 921600, while the sum is 44.

The square root of 8425833425 is about 91792.3385964210. The cubic root of 8425833425 is about 2034.8744698167.

The spelling of 8425833425 in words is "eight billion, four hundred twenty-five million, eight hundred thirty-three thousand, four hundred twenty-five".