64411265 has 16 divisors (see below), whose sum is σ = 79673232. Its totient is φ = 49953024.

The previous prime is 64411231. The next prime is 64411289. The reversal of 64411265 is 56211446.

It can be written as a sum of positive squares in 8 ways, for example, as 11296321 + 53114944 = 3361^2 + 7288^2 .

It is a cyclic number.

It is not a de Polignac number, because 64411265 - 2¹⁴ = 64394881 is a prime.

It is a super-2 number, since 2×64411265² = 8297622117800450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73007 + ... + 73883.

It is an arithmetic number, because the mean of its divisors is an integer number (4979577).

Almost surely, 2^64411265 is an apocalyptic number.

It is an amenable number.

64411265 is a deficient number, since it is larger than the sum of its proper divisors (15261967).

64411265 is a wasteful number, since it uses less digits than its factorization.

64411265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its digits is 5760, while the sum is 29.

The square root of 64411265 is about 8025.6629009696. The cubic root of 64411265 is about 400.8549733328.

The spelling of 64411265 in words is "sixty-four million, four hundred eleven thousand, two hundred sixty-five".