46564581 has 64 divisors (see below), whose sum is σ = 80621568. Its totient is φ = 23282688.

The previous prime is 46564579. The next prime is 46564589. The reversal of 46564581 is 18546564.

It is a happy number.

It is not a de Polignac number, because 46564581 - 2¹ = 46564579 is a prime.

It is a super-2 number, since 2×46564581² = 4336520407411122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46564589) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 435130 + ... + 435236.

It is an arithmetic number, because the mean of its divisors is an integer number (1259712).

Almost surely, 2^46564581 is an apocalyptic number.

It is an amenable number.

46564581 is a deficient number, since it is larger than the sum of its proper divisors (34056987).

46564581 is a wasteful number, since it uses less digits than its factorization.

46564581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210.

The product of its digits is 115200, while the sum is 39.

The square root of 46564581 is about 6823.8245141563. The cubic root of 46564581 is about 359.7647150857.

The spelling of 46564581 in words is "forty-six million, five hundred sixty-four thousand, five hundred eighty-one".