51682825 has 12 divisors (see below), whose sum is σ = 64712128. Its totient is φ = 40942800.

The previous prime is 51682823. The next prime is 51682847. The reversal of 51682825 is 52828615.

It is not a de Polignac number, because 51682825 - 2¹ = 51682823 is a prime.

It is a super-2 number, since 2×51682825² = 5342228799961250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51682823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7461 + ... + 12610.

Almost surely, 2^51682825 is an apocalyptic number.

It is an amenable number.

51682825 is a deficient number, since it is larger than the sum of its proper divisors (13029303).

51682825 is a wasteful number, since it uses less digits than its factorization.

51682825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20184 (or 20179 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 51682825 is about 7189.0767835655. The cubic root of 51682825 is about 372.4906833698.

The spelling of 51682825 in words is "fifty-one million, six hundred eighty-two thousand, eight hundred twenty-five".