65722955 has 4 divisors (see below), whose sum is σ = 78867552. Its totient is φ = 52578360.

The previous prime is 65722939. The next prime is 65722999. The reversal of 65722955 is 55922756.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65722955 - 2⁴ = 65722939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6572291 + ... + 6572300.

It is an arithmetic number, because the mean of its divisors is an integer number (19716888).

Almost surely, 2^65722955 is an apocalyptic number.

65722955 is a deficient number, since it is larger than the sum of its proper divisors (13144597).

65722955 is a wasteful number, since it uses less digits than its factorization.

65722955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13144596.

The product of its digits is 189000, while the sum is 41.

The square root of 65722955 is about 8106.9695324455. The cubic root of 65722955 is about 403.5577517713.

The spelling of 65722955 in words is "sixty-five million, seven hundred twenty-two thousand, nine hundred fifty-five".