71575050 has 48 divisors (see below), whose sum is σ = 179676000. Its totient is φ = 18853440.

The previous prime is 71575043. The next prime is 71575051. The reversal of 71575050 is 5057517.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71574999 and 71575017.

It is not an unprimeable number, because it can be changed into a prime (71575051) 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, 9576 + ... + 15324.

It is an arithmetic number, because the mean of its divisors is an integer number (3743250).

Almost surely, 2^71575050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71575050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89838000).

71575050 is an abundant number, since it is smaller than the sum of its proper divisors (108100950).

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

71575050 is a wasteful number, since it uses less digits than its factorization.

71575050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5847 (or 5842 counting only the distinct ones).

The product of its (nonzero) digits is 6125, while the sum is 30.

The square root of 71575050 is about 8460.2038982521. The cubic root of 71575050 is about 415.1966939086.

The spelling of 71575050 in words is "seventy-one million, five hundred seventy-five thousand, fifty".