64455530 has 16 divisors (see below), whose sum is σ = 117217800. Its totient is φ = 25516032.

The previous prime is 64455529. The next prime is 64455533. The reversal of 64455530 is 3555446.

It can be written as a sum of positive squares in 4 ways, for example, as 62520649 + 1934881 = 7907^2 + 1391^2 .

It is not an unprimeable number, because it can be changed into a prime (64455533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32255 + ... + 34194.

Almost surely, 2^64455530 is an apocalyptic number.

64455530 is a deficient number, since it is larger than the sum of its proper divisors (52762270).

64455530 is a wasteful number, since it uses less digits than its factorization.

64455530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66553.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 64455530 is about 8028.4201434653. The cubic root of 64455530 is about 400.9467780934.

The spelling of 64455530 in words is "sixty-four million, four hundred fifty-five thousand, five hundred thirty".