65312953 has 4 divisors (see below), whose sum is σ = 65403520. Its totient is φ = 65222388.

The previous prime is 65312927. The next prime is 65312957. The reversal of 65312953 is 35921356.

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 65312953 - 2⁹ = 65312441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65312957) 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, 44193 + ... + 45646.

It is an arithmetic number, because the mean of its divisors is an integer number (16350880).

Almost surely, 2^65312953 is an apocalyptic number.

It is an amenable number.

65312953 is a deficient number, since it is larger than the sum of its proper divisors (90567).

65312953 is an equidigital number, since it uses as much as digits as its factorization.

65312953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90566.

The product of its digits is 24300, while the sum is 34.

The square root of 65312953 is about 8081.6429641503. The cubic root of 65312953 is about 402.7168241389.

The spelling of 65312953 in words is "sixty-five million, three hundred twelve thousand, nine hundred fifty-three".