82650520 has 32 divisors (see below), whose sum is σ = 187395120. Its totient is φ = 32805760.

The previous prime is 82650517. The next prime is 82650553. The reversal of 82650520 is 2505628.

It is a super-2 number, since 2×82650520² = 13662216912540800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2647 + ... + 13126.

Almost surely, 2^82650520 is an apocalyptic number.

It is an amenable number.

82650520 is an abundant number, since it is smaller than the sum of its proper divisors (104744600).

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

82650520 is a wasteful number, since it uses less digits than its factorization.

82650520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15915 (or 15911 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 82650520 is about 9091.2331396791. The cubic root of 82650520 is about 435.5939743326.

The spelling of 82650520 in words is "eighty-two million, six hundred fifty thousand, five hundred twenty".