82555330 has 32 divisors (see below), whose sum is σ = 174581568. Its totient is φ = 27710400.

The previous prime is 82555327. The next prime is 82555331. The reversal of 82555330 is 3355528.

It is a super-2 number, since 2×82555330² = 13630765022817800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82555292 and 82555301.

It is not an unprimeable number, because it can be changed into a prime (82555331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27436 + ... + 30295.

It is an arithmetic number, because the mean of its divisors is an integer number (5455674).

Almost surely, 2^82555330 is an apocalyptic number.

82555330 is an abundant number, since it is smaller than the sum of its proper divisors (92026238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82555330 is a wasteful number, since it uses less digits than its factorization.

82555330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57762.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 82555330 is about 9085.9963680380. The cubic root of 82555330 is about 435.4266831127.

The spelling of 82555330 in words is "eighty-two million, five hundred fifty-five thousand, three hundred thirty".