65722075 has 24 divisors (see below), whose sum is σ = 83566080. Its totient is φ = 51261600.

The previous prime is 65722061. The next prime is 65722079. The reversal of 65722075 is 57022756.

It is a happy number.

It is not a de Polignac number, because 65722075 - 2⁷ = 65721947 is a prime.

It is a super-2 number, since 2×65722075² = 8638782284611250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65722075.

It is not an unprimeable number, because it can be changed into a prime (65722079) 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, 211170 + ... + 211480.

It is an arithmetic number, because the mean of its divisors is an integer number (3481920).

Almost surely, 2^65722075 is an apocalyptic number.

65722075 is a deficient number, since it is larger than the sum of its proper divisors (17844005).

65722075 is a wasteful number, since it uses less digits than its factorization.

65722075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 65722075 is about 8106.9152579757. The cubic root of 65722075 is about 403.5559506126. Note that the first 3 decimals are identical.

The spelling of 65722075 in words is "sixty-five million, seven hundred twenty-two thousand, seventy-five".