53664994 has 16 divisors (see below), whose sum is σ = 82601856. Its totient is φ = 26139600.

The previous prime is 53664983. The next prime is 53664997. The reversal of 53664994 is 49946635.

It is not an unprimeable number, because it can be changed into a prime (53664997) 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, 10999 + ... + 15109.

It is an arithmetic number, because the mean of its divisors is an integer number (5162616).

Almost surely, 2^53664994 is an apocalyptic number.

53664994 is a deficient number, since it is larger than the sum of its proper divisors (28936862).

53664994 is a wasteful number, since it uses less digits than its factorization.

53664994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281.

The product of its digits is 699840, while the sum is 46.

The square root of 53664994 is about 7325.6394942694. The cubic root of 53664994 is about 377.1930613208.

The spelling of 53664994 in words is "fifty-three million, six hundred sixty-four thousand, nine hundred ninety-four".