54644978 has 8 divisors (see below), whose sum is σ = 82184880. Its totient is φ = 27250020.

The previous prime is 54644977. The next prime is 54644981. The reversal of 54644978 is 87944645.

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

It is not an unprimeable number, because it can be changed into a prime (54644977) 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, 35288 + ... + 36803.

It is an arithmetic number, because the mean of its divisors is an integer number (10273110).

Almost surely, 2^54644978 is an apocalyptic number.

54644978 is a deficient number, since it is larger than the sum of its proper divisors (27539902).

54644978 is a wasteful number, since it uses less digits than its factorization.

54644978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72472.

The product of its digits is 967680, while the sum is 47.

The square root of 54644978 is about 7392.2241578567. The cubic root of 54644978 is about 379.4752174336.

The spelling of 54644978 in words is "fifty-four million, six hundred forty-four thousand, nine hundred seventy-eight".