564451481 has 8 divisors (see below), whose sum is σ = 616098144. Its totient is φ = 512860320.

The previous prime is 564451471. The next prime is 564451499. The reversal of 564451481 is 184154465.

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

It is a cyclic number.

It is not a de Polignac number, because 564451481 - 2²⁶ = 497342617 is a prime.

It is a super-2 number, since 2×564451481² = 637210948806186722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (564451421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9050 + ... + 34796.

It is an arithmetic number, because the mean of its divisors is an integer number (77012268).

Almost surely, 2^564451481 is an apocalyptic number.

It is an amenable number.

564451481 is a deficient number, since it is larger than the sum of its proper divisors (51646663).

564451481 is a wasteful number, since it uses less digits than its factorization.

564451481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27751.

The product of its digits is 76800, while the sum is 38.

The square root of 564451481 is about 23758.1876623618. The cubic root of 564451481 is about 826.4353249599.

The spelling of 564451481 in words is "five hundred sixty-four million, four hundred fifty-one thousand, four hundred eighty-one".