65442653 has 4 divisors (see below), whose sum is σ = 65469600. Its totient is φ = 65415708.

The previous prime is 65442649. The next prime is 65442701. The reversal of 65442653 is 35624456.

It is a happy number.

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 65442653 - 2² = 65442649 is a prime.

It is a super-3 number, since 3×65442653³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65448653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9425 + ... + 14822.

It is an arithmetic number, because the mean of its divisors is an integer number (16367400).

Almost surely, 2^65442653 is an apocalyptic number.

It is an amenable number.

65442653 is a deficient number, since it is larger than the sum of its proper divisors (26947).

65442653 is a wasteful number, since it uses less digits than its factorization.

65442653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26946.

The product of its digits is 86400, while the sum is 35.

The square root of 65442653 is about 8089.6633428098. The cubic root of 65442653 is about 402.9832227272.

The spelling of 65442653 in words is "sixty-five million, four hundred forty-two thousand, six hundred fifty-three".