65450481 has 8 divisors (see below), whose sum is σ = 87328224. Its totient is φ = 43603200.

The previous prime is 65450471. The next prime is 65450501. The reversal of 65450481 is 18405456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-65450481 is a prime.

It is a super-2 number, since 2×65450481² = 8567530926262722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65450431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2011 + ... + 11616.

It is an arithmetic number, because the mean of its divisors is an integer number (10916028).

Almost surely, 2^65450481 is an apocalyptic number.

It is an amenable number.

65450481 is a deficient number, since it is larger than the sum of its proper divisors (21877743).

65450481 is a wasteful number, since it uses less digits than its factorization.

65450481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15231.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 65450481 is about 8090.1471556456. The cubic root of 65450481 is about 402.9992898575. Note that the first 3 decimals are identical.

The spelling of 65450481 in words is "sixty-five million, four hundred fifty thousand, four hundred eighty-one".