82279551 has 8 divisors (see below), whose sum is σ = 111343744. Its totient is φ = 54034200.

The previous prime is 82279543. The next prime is 82279577. The reversal of 82279551 is 15597228.

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

It is not a de Polignac number, because 82279551 - 2³ = 82279543 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 (82279151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204475 + ... + 204876.

It is an arithmetic number, because the mean of its divisors is an integer number (13917968).

Almost surely, 2^82279551 is an apocalyptic number.

82279551 is a deficient number, since it is larger than the sum of its proper divisors (29064193).

82279551 is a wasteful number, since it uses less digits than its factorization.

82279551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409421.

The product of its digits is 50400, while the sum is 39.

The square root of 82279551 is about 9070.8076266670. The cubic root of 82279551 is about 434.9412894737.

The spelling of 82279551 in words is "eighty-two million, two hundred seventy-nine thousand, five hundred fifty-one".