71605050 has 48 divisors (see below), whose sum is σ = 193728672. Its totient is φ = 17358400.

The previous prime is 71605021. The next prime is 71605057. The reversal of 71605050 is 5050617.

It is a self number, because there is not a number n which added to its sum of digits gives 71605050.

It is not an unprimeable number, because it can be changed into a prime (71605057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20049 + ... + 23348.

It is an arithmetic number, because the mean of its divisors is an integer number (4036014).

Almost surely, 2^71605050 is an apocalyptic number.

71605050 is an abundant number, since it is smaller than the sum of its proper divisors (122123622).

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

71605050 is a wasteful number, since it uses less digits than its factorization.

71605050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43423 (or 43418 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 71605050 is about 8461.9767194196. The cubic root of 71605050 is about 415.2546943848.

Adding to 71605050 its reverse (5050617), we get a palindrome (76655667).

The spelling of 71605050 in words is "seventy-one million, six hundred five thousand, fifty".