64011225 has 24 divisors (see below), whose sum is σ = 106322560. Its totient is φ = 33981120.

The previous prime is 64011217. The next prime is 64011271. The reversal of 64011225 is 52211046.

It is not a de Polignac number, because 64011225 - 2³ = 64011217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15312 + ... + 19038.

Almost surely, 2^64011225 is an apocalyptic number.

It is an amenable number.

64011225 is a deficient number, since it is larger than the sum of its proper divisors (42311335).

64011225 is a wasteful number, since it uses less digits than its factorization.

64011225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969 (or 3964 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 64011225 is about 8000.7015317408. The cubic root of 64011225 is about 400.0233840496.

It can be divided in two parts, 6401 and 1225, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 64011225 in words is "sixty-four million, eleven thousand, two hundred twenty-five".