65750613 has 4 divisors (see below), whose sum is σ = 87667488. Its totient is φ = 43833740.

The previous prime is 65750599. The next prime is 65750639. The reversal of 65750613 is 31605756.

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 65750613 - 2⁶ = 65750549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65750693) 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, 10958433 + ... + 10958438.

It is an arithmetic number, because the mean of its divisors is an integer number (21916872).

Almost surely, 2^65750613 is an apocalyptic number.

It is an amenable number.

65750613 is a deficient number, since it is larger than the sum of its proper divisors (21916875).

65750613 is a wasteful number, since it uses less digits than its factorization.

65750613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21916874.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 65750613 is about 8108.6751692246. The cubic root of 65750613 is about 403.6143531772.

The spelling of 65750613 in words is "sixty-five million, seven hundred fifty thousand, six hundred thirteen".