64113505 has 8 divisors (see below), whose sum is σ = 80985600. Its totient is φ = 48591216.

The previous prime is 64113503. The next prime is 64113509. The reversal of 64113505 is 50531146.

64113505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64113505 - 2¹ = 64113503 is a prime.

It is a super-2 number, since 2×64113505² = 8221083046770050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64113505.

It is not an unprimeable number, because it can be changed into a prime (64113503) 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, 337345 + ... + 337534.

It is an arithmetic number, because the mean of its divisors is an integer number (10123200).

Almost surely, 2^64113505 is an apocalyptic number.

It is an amenable number.

64113505 is a deficient number, since it is larger than the sum of its proper divisors (16872095).

64113505 is a wasteful number, since it uses less digits than its factorization.

64113505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674903.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 64113505 is about 8007.0909199284. The cubic root of 64113505 is about 400.2363290939.

It can be divided in two parts, 64 and 113505, that added together give a square (113569 = 337²).

The spelling of 64113505 in words is "sixty-four million, one hundred thirteen thousand, five hundred five".