65312445 has 32 divisors (see below), whose sum is σ = 114491520. Its totient is φ = 31530240.

The previous prime is 65312441. The next prime is 65312449. The reversal of 65312445 is 54421356.

It is an interprime number because it is at equal distance from previous prime (65312441) and next prime (65312449).

It is not a de Polignac number, because 65312445 - 2² = 65312441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65312441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44991 + ... + 46419.

It is an arithmetic number, because the mean of its divisors is an integer number (3577860).

Almost surely, 2^65312445 is an apocalyptic number.

It is an amenable number.

65312445 is a deficient number, since it is larger than the sum of its proper divisors (49179075).

65312445 is a wasteful number, since it uses less digits than its factorization.

65312445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725.

The product of its digits is 14400, while the sum is 30.

The square root of 65312445 is about 8081.6115348364. The cubic root of 65312445 is about 402.7157800342.

The spelling of 65312445 in words is "sixty-five million, three hundred twelve thousand, four hundred forty-five".