53644994 has 24 divisors (see below), whose sum is σ = 89183952. Its totient is φ = 24176880.

The previous prime is 53644991. The next prime is 53645003. The reversal of 53644994 is 49944635.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53644991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12689 + ... + 16379.

It is an arithmetic number, because the mean of its divisors is an integer number (3715998).

Almost surely, 2^53644994 is an apocalyptic number.

53644994 is a deficient number, since it is larger than the sum of its proper divisors (35538958).

53644994 is a wasteful number, since it uses less digits than its factorization.

53644994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762 (or 3749 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

The square root of 53644994 is about 7324.2742985227. The cubic root of 53644994 is about 377.1461977573.

The spelling of 53644994 in words is "fifty-three million, six hundred forty-four thousand, nine hundred ninety-four".