64500041 has 4 divisors (see below), whose sum is σ = 67894800. Its totient is φ = 61105284.

The previous prime is 64500001. The next prime is 64500049. The reversal of 64500041 is 14000546.

It is a happy number.

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 64500041 - 2⁶ = 64499977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64499986 and 64500022.

It is not an unprimeable number, because it can be changed into a prime (64500049) 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, 1697351 + ... + 1697388.

It is an arithmetic number, because the mean of its divisors is an integer number (16973700).

Almost surely, 2^64500041 is an apocalyptic number.

It is an amenable number.

64500041 is a deficient number, since it is larger than the sum of its proper divisors (3394759).

64500041 is a wasteful number, since it uses less digits than its factorization.

64500041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394758.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 64500041 is about 8031.1917546526. The cubic root of 64500041 is about 401.0390506805.

Adding to 64500041 its reverse (14000546), we get a palindrome (78500587).

The spelling of 64500041 in words is "sixty-four million, five hundred thousand, forty-one".