65772653 has 4 divisors (see below), whose sum is σ = 65921568. Its totient is φ = 65623740.

The previous prime is 65772649. The next prime is 65772659. The reversal of 65772653 is 35627756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65772653 - 2² = 65772649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65772653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65772659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73793 + ... + 74678.

It is an arithmetic number, because the mean of its divisors is an integer number (16480392).

Almost surely, 2^65772653 is an apocalyptic number.

It is an amenable number.

65772653 is a deficient number, since it is larger than the sum of its proper divisors (148915).

65772653 is a wasteful number, since it uses less digits than its factorization.

65772653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148914.

The product of its digits is 264600, while the sum is 41.

The square root of 65772653 is about 8110.0340936398. The cubic root of 65772653 is about 403.6594461234.

The spelling of 65772653 in words is "sixty-five million, seven hundred seventy-two thousand, six hundred fifty-three".