64561010 has 16 divisors (see below), whose sum is σ = 117847872. Its totient is φ = 25460400.

The previous prime is 64560983. The next prime is 64561039. The reversal of 64561010 is 1016546.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44756 + ... + 46175.

It is an arithmetic number, because the mean of its divisors is an integer number (7365492).

Almost surely, 2^64561010 is an apocalyptic number.

64561010 is a deficient number, since it is larger than the sum of its proper divisors (53286862).

64561010 is a wasteful number, since it uses less digits than its factorization.

64561010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91009.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 64561010 is about 8034.9866210218. The cubic root of 64561010 is about 401.1653723046.

Adding to 64561010 its reverse (1016546), we get a palindrome (65577556).

The spelling of 64561010 in words is "sixty-four million, five hundred sixty-one thousand, ten".