82542207 has 24 divisors (see below), whose sum is σ = 125158320. Its totient is φ = 48294400.

The previous prime is 82542203. The next prime is 82542209. The reversal of 82542207 is 70224528.

It is not a de Polignac number, because 82542207 - 2² = 82542203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82542203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6607 + ... + 14447.

It is an arithmetic number, because the mean of its divisors is an integer number (5214930).

Almost surely, 2^82542207 is an apocalyptic number.

82542207 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

82542207 is a deficient number, since it is larger than the sum of its proper divisors (42616113).

82542207 is a wasteful number, since it uses less digits than its factorization.

82542207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 82542207 is about 9085.2741840849. The cubic root of 82542207 is about 435.4036100732.

The spelling of 82542207 in words is "eighty-two million, five hundred forty-two thousand, two hundred seven".