64412513 has 16 divisors (see below), whose sum is σ = 74096640. Its totient is φ = 55448400.

The previous prime is 64412503. The next prime is 64412533. The reversal of 64412513 is 31521446.

It is a cyclic number.

It is not a de Polignac number, because 64412513 - 2⁴ = 64412497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64412503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14018 + ... + 18036.

It is an arithmetic number, because the mean of its divisors is an integer number (4631040).

Almost surely, 2^64412513 is an apocalyptic number.

It is an amenable number.

64412513 is a deficient number, since it is larger than the sum of its proper divisors (9684127).

64412513 is a wasteful number, since it uses less digits than its factorization.

64412513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108.

The product of its digits is 2880, while the sum is 26.

The square root of 64412513 is about 8025.7406511798. The cubic root of 64412513 is about 400.8575622370.

Adding to 64412513 its reverse (31521446), we get a palindrome (95933959).

The spelling of 64412513 in words is "sixty-four million, four hundred twelve thousand, five hundred thirteen".