82550825 has 12 divisors (see below), whose sum is σ = 116986560. Its totient is φ = 56606160.

The previous prime is 82550803. The next prime is 82550837. The reversal of 82550825 is 52805528.

It is not a de Polignac number, because 82550825 - 2⁶ = 82550761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235685 + ... + 236034.

It is an arithmetic number, because the mean of its divisors is an integer number (9748880).

Almost surely, 2^82550825 is an apocalyptic number.

It is an amenable number.

82550825 is a deficient number, since it is larger than the sum of its proper divisors (34435735).

82550825 is a wasteful number, since it uses less digits than its factorization.

82550825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471736 (or 471731 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 82550825 is about 9085.7484556860. The cubic root of 82550825 is about 435.4187626353.

The spelling of 82550825 in words is "eighty-two million, five hundred fifty thousand, eight hundred twenty-five".