71752050 has 72 divisors (see below), whose sum is σ = 197526420. Its totient is φ = 18662400.

The previous prime is 71752039. The next prime is 71752063. The reversal of 71752050 is 5025717.

It can be written as a sum of positive squares in 6 ways, for example, as 15186609 + 56565441 = 3897^2 + 7521^2 .

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 16506 + ... + 20394.

Almost surely, 2^71752050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71752050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98763210).

71752050 is an abundant number, since it is smaller than the sum of its proper divisors (125774370).

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

71752050 is a wasteful number, since it uses less digits than its factorization.

71752050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 71752050 is about 8470.6581798583. The cubic root of 71752050 is about 415.5386627909.

Adding to 71752050 its reverse (5025717), we get a palindrome (76777767).

The spelling of 71752050 in words is "seventy-one million, seven hundred fifty-two thousand, fifty".