65573910 has 48 divisors (see below), whose sum is σ = 171864576. Its totient is φ = 17345664.

The previous prime is 65573909. The next prime is 65573917. The reversal of 65573910 is 1937556.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65573917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8562 + ... + 14298.

It is an arithmetic number, because the mean of its divisors is an integer number (3580512).

Almost surely, 2^65573910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65573910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85932288).

65573910 is an abundant number, since it is smaller than the sum of its proper divisors (106290666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65573910 is a wasteful number, since it uses less digits than its factorization.

65573910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877 (or 5874 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 65573910 is about 8097.7719157803. The cubic root of 65573910 is about 403.2524612271.

The spelling of 65573910 in words is "sixty-five million, five hundred seventy-three thousand, nine hundred ten".