82425551 has 8 divisors (see below), whose sum is σ = 88839744. Its totient is φ = 76021920.

The previous prime is 82425523. The next prime is 82425589. The reversal of 82425551 is 15552428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82425551 - 2⁶ = 82425487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82425521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22490 + ... + 25896.

It is an arithmetic number, because the mean of its divisors is an integer number (11104968).

Almost surely, 2^82425551 is an apocalyptic number.

82425551 is a deficient number, since it is larger than the sum of its proper divisors (6414193).

82425551 is a wasteful number, since it uses less digits than its factorization.

82425551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281.

The product of its digits is 16000, while the sum is 32.

The square root of 82425551 is about 9078.8518547226. The cubic root of 82425551 is about 435.1983963112.

Adding to 82425551 its reverse (15552428), we get a palindrome (97977979).

The spelling of 82425551 in words is "eighty-two million, four hundred twenty-five thousand, five hundred fifty-one".