64595481 has 4 divisors (see below), whose sum is σ = 86127312. Its totient is φ = 43063652.

The previous prime is 64595467. The next prime is 64595483. The reversal of 64595481 is 18459546.

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 64595481 - 2¹⁰ = 64594457 is a prime.

It is a super-2 number, since 2×64595481² = 8345152331242722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64595483) 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, 10765911 + ... + 10765916.

It is an arithmetic number, because the mean of its divisors is an integer number (21531828).

Almost surely, 2^64595481 is an apocalyptic number.

It is an amenable number.

64595481 is a deficient number, since it is larger than the sum of its proper divisors (21531831).

64595481 is a wasteful number, since it uses less digits than its factorization.

64595481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21531830.

The product of its digits is 172800, while the sum is 42.

The square root of 64595481 is about 8037.1313912366. The cubic root of 64595481 is about 401.2367575525.

The spelling of 64595481 in words is "sixty-four million, five hundred ninety-five thousand, four hundred eighty-one".