64519954 has 8 divisors (see below), whose sum is σ = 100117260. Its totient is φ = 31147536.

The previous prime is 64519933. The next prime is 64519957. The reversal of 64519954 is 45991546.

It can be written as a sum of positive squares in 2 ways, for example, as 61261929 + 3258025 = 7827^2 + 1805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64519954.

It is not an unprimeable number, because it can be changed into a prime (64519957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556149 + ... + 556264.

Almost surely, 2^64519954 is an apocalyptic number.

64519954 is a deficient number, since it is larger than the sum of its proper divisors (35597306).

64519954 is a wasteful number, since it uses less digits than its factorization.

64519954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112444.

The product of its digits is 194400, while the sum is 43.

The square root of 64519954 is about 8032.4313878178. The cubic root of 64519954 is about 401.0803171604.

The spelling of 64519954 in words is "sixty-four million, five hundred nineteen thousand, nine hundred fifty-four".