65450477 has 4 divisors (see below), whose sum is σ = 67707420. Its totient is φ = 63193536.

The previous prime is 65450471. The next prime is 65450501. The reversal of 65450477 is 77405456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36409156 + 29041321 = 6034^2 + 5389^2 .

It is a cyclic number.

It is not a de Polignac number, because 65450477 - 2²⁰ = 64401901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65450477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65450471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128428 + ... + 1128485.

It is an arithmetic number, because the mean of its divisors is an integer number (16926855).

Almost surely, 2^65450477 is an apocalyptic number.

It is an amenable number.

65450477 is a deficient number, since it is larger than the sum of its proper divisors (2256943).

65450477 is a wasteful number, since it uses less digits than its factorization.

65450477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256942.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 65450477 is about 8090.1469084313. The cubic root of 65450477 is about 402.9992816477. Note that the first 3 decimals are identical.

The spelling of 65450477 in words is "sixty-five million, four hundred fifty thousand, four hundred seventy-seven".