75520722 has 16 divisors (see below), whose sum is σ = 151300800. Its totient is φ = 25130352.

The previous prime is 75520721. The next prime is 75520747. The reversal of 75520722 is 22702557.

It is a self number, because there is not a number n which added to its sum of digits gives 75520722.

It is not an unprimeable number, because it can be changed into a prime (75520721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6913 + ... + 14100.

It is an arithmetic number, because the mean of its divisors is an integer number (9456300).

Almost surely, 2^75520722 is an apocalyptic number.

75520722 is an abundant number, since it is smaller than the sum of its proper divisors (75780078).

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

75520722 is a wasteful number, since it uses less digits than its factorization.

75520722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21617.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 75520722 is about 8690.2659337905. The cubic root of 75520722 is about 422.6900691210.

The spelling of 75520722 in words is "seventy-five million, five hundred twenty thousand, seven hundred twenty-two".