83815050 has 96 divisors (see below), whose sum is σ = 229985280. Its totient is φ = 20030400.

The previous prime is 83815031. The next prime is 83815051. The reversal of 83815050 is 5051838.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 83814999 and 83815017.

It is not an unprimeable number, because it can be changed into a prime (83815051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130029 + ... + 130671.

It is an arithmetic number, because the mean of its divisors is an integer number (2395680).

Almost surely, 2^83815050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83815050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114992640).

83815050 is an abundant number, since it is smaller than the sum of its proper divisors (146170230).

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

83815050 is a wasteful number, since it uses less digits than its factorization.

83815050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 83815050 is about 9155.0559801675. The cubic root of 83815050 is about 437.6302523739.

Adding to 83815050 its reverse (5051838), we get a palindrome (88866888).

It can be divided in two parts, 8381 and 5050, that added together give a palindrome (13431).

The spelling of 83815050 in words is "eighty-three million, eight hundred fifteen thousand, fifty".