82281425 has 12 divisors (see below), whose sum is σ = 102493440. Its totient is φ = 65525520.

The previous prime is 82281421. The next prime is 82281461. The reversal of 82281425 is 52418228.

It is not a de Polignac number, because 82281425 - 2² = 82281421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82281391 and 82281400.

It is not an unprimeable number, because it can be changed into a prime (82281421) 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, 1805 + ... + 12954.

It is an arithmetic number, because the mean of its divisors is an integer number (8541120).

Almost surely, 2^82281425 is an apocalyptic number.

It is an amenable number.

82281425 is a deficient number, since it is larger than the sum of its proper divisors (20212015).

82281425 is a wasteful number, since it uses less digits than its factorization.

82281425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14992 (or 14987 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 82281425 is about 9070.9109244882. The cubic root of 82281425 is about 434.9445915245.

The spelling of 82281425 in words is "eighty-two million, two hundred eighty-one thousand, four hundred twenty-five".