82551707 has 4 divisors (see below), whose sum is σ = 94344816. Its totient is φ = 70758600.

The previous prime is 82551673. The next prime is 82551709. The reversal of 82551707 is 70715528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82551707 - 2⁸ = 82551451 is a prime.

It is a super-2 number, since 2×82551707² = 13629568657227698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82551709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5896544 + ... + 5896557.

It is an arithmetic number, because the mean of its divisors is an integer number (23586204).

Almost surely, 2^82551707 is an apocalyptic number.

82551707 is a deficient number, since it is larger than the sum of its proper divisors (11793109).

82551707 is a wasteful number, since it uses less digits than its factorization.

82551707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11793108.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 82551707 is about 9085.7969931096. The cubic root of 82551707 is about 435.4203133485.

The spelling of 82551707 in words is "eighty-two million, five hundred fifty-one thousand, seven hundred seven".