64265649 has 16 divisors (see below), whose sum is σ = 98165760. Its totient is φ = 36634320.

The previous prime is 64265629. The next prime is 64265659. The reversal of 64265649 is 94656246.

It is not a de Polignac number, because 64265649 - 2⁸ = 64265393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64265649.

It is not an unprimeable number, because it can be changed into a prime (64265629) 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, 5734 + ... + 12704.

It is an arithmetic number, because the mean of its divisors is an integer number (6135360).

Almost surely, 2^64265649 is an apocalyptic number.

It is an amenable number.

64265649 is a deficient number, since it is larger than the sum of its proper divisors (33900111).

64265649 is a wasteful number, since it uses less digits than its factorization.

64265649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420.

The product of its digits is 311040, while the sum is 42.

The square root of 64265649 is about 8016.5858693087. The cubic root of 64265649 is about 400.5526714506.

The spelling of 64265649 in words is "sixty-four million, two hundred sixty-five thousand, six hundred forty-nine".