82400050 has 12 divisors (see below), whose sum is σ = 153264186. Its totient is φ = 32960000.

The previous prime is 82400041. The next prime is 82400051. The reversal of 82400050 is 5000428.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 43599609 + 38800441 = 6603^2 + 6229^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82400051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 823951 + ... + 824050.

Almost surely, 2^82400050 is an apocalyptic number.

82400050 is a deficient number, since it is larger than the sum of its proper divisors (70864136).

82400050 is a wasteful number, since it uses less digits than its factorization.

82400050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648013 (or 1648008 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 82400050 is about 9077.4473284068. The cubic root of 82400050 is about 435.1535107999.

Adding to 82400050 its reverse (5000428), we get a palindrome (87400478).

The spelling of 82400050 in words is "eighty-two million, four hundred thousand, fifty".