82515028 has 6 divisors (see below), whose sum is σ = 144401306. Its totient is φ = 41257512.

The previous prime is 82515023. The next prime is 82515029. The reversal of 82515028 is 82051528.

It can be written as a sum of positive squares in only one way, i.e., 62694724 + 19820304 = 7918^2 + 4452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82515023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10314375 + ... + 10314382.

Almost surely, 2^82515028 is an apocalyptic number.

It is an amenable number.

82515028 is a deficient number, since it is larger than the sum of its proper divisors (61886278).

82515028 is a wasteful number, since it uses less digits than its factorization.

82515028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20628761 (or 20628759 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 82515028 is about 9083.7782887959. The cubic root of 82515028 is about 435.3558158023.

The spelling of 82515028 in words is "eighty-two million, five hundred fifteen thousand, twenty-eight".