65205045 has 12 divisors (see below), whose sum is σ = 113022156. Its totient is φ = 34776000.

The previous prime is 65205029. The next prime is 65205073. The reversal of 65205045 is 54050256.

65205045 is a `hidden beast` number, since 652 + 0 + 5 + 0 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14311089 + 50893956 = 3783^2 + 7134^2 .

It is not a de Polignac number, because 65205045 - 2⁴ = 65205029 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724456 + ... + 724545.

It is an arithmetic number, because the mean of its divisors is an integer number (9418513).

Almost surely, 2^65205045 is an apocalyptic number.

It is an amenable number.

65205045 is a deficient number, since it is larger than the sum of its proper divisors (47817111).

65205045 is a wasteful number, since it uses less digits than its factorization.

65205045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449012 (or 1449009 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 65205045 is about 8074.9640866074. The cubic root of 65205045 is about 402.4949165414.

The spelling of 65205045 in words is "sixty-five million, two hundred five thousand, forty-five".