82125750 has 64 divisors (see below), whose sum is σ = 234284544. Its totient is φ = 18770400.

The previous prime is 82125749. The next prime is 82125773. The reversal of 82125750 is 5752128.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2572 + ... + 13071.

It is an arithmetic number, because the mean of its divisors is an integer number (3660696).

Almost surely, 2^82125750 is an apocalyptic number.

82125750 is an abundant number, since it is smaller than the sum of its proper divisors (152158794).

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

82125750 is a wasteful number, since it uses less digits than its factorization.

82125750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15670 (or 15660 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 82125750 is about 9062.3258603959. The cubic root of 82125750 is about 434.6701158606.

Adding to 82125750 its reverse (5752128), we get a palindrome (87877878).

The spelling of 82125750 in words is "eighty-two million, one hundred twenty-five thousand, seven hundred fifty".