65250653 has 4 divisors (see below), whose sum is σ = 70269948. Its totient is φ = 60231360.

The previous prime is 65250643. The next prime is 65250671. The reversal of 65250653 is 35605256.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44063044 + 21187609 = 6638^2 + 4603^2 .

It is a cyclic number.

It is not a de Polignac number, because 65250653 - 2⁶ = 65250589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65250623) 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, 2509628 + ... + 2509653.

It is an arithmetic number, because the mean of its divisors is an integer number (17567487).

Almost surely, 2^65250653 is an apocalyptic number.

It is an amenable number.

65250653 is a deficient number, since it is larger than the sum of its proper divisors (5019295).

65250653 is a wasteful number, since it uses less digits than its factorization.

65250653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5019294.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 65250653 is about 8077.7876302859. The cubic root of 65250653 is about 402.5887370418.

The spelling of 65250653 in words is "sixty-five million, two hundred fifty thousand, six hundred fifty-three".