54674821 has 4 divisors (see below), whose sum is σ = 54699372. Its totient is φ = 54650272.

The previous prime is 54674813. The next prime is 54674827. The reversal of 54674821 is 12847645.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12847645 = 5 ⋅2569529.

It can be written as a sum of positive squares in 2 ways, for example, as 43046721 + 11628100 = 6561^2 + 3410^2 .

It is a cyclic number.

It is not a de Polignac number, because 54674821 - 2³ = 54674813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54674827) 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, 8560 + ... + 13513.

It is an arithmetic number, because the mean of its divisors is an integer number (13674843).

Almost surely, 2^54674821 is an apocalyptic number.

It is an amenable number.

54674821 is a deficient number, since it is larger than the sum of its proper divisors (24551).

54674821 is a wasteful number, since it uses less digits than its factorization.

54674821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24550.

The product of its digits is 53760, while the sum is 37.

The square root of 54674821 is about 7394.2424223175. The cubic root of 54674821 is about 379.5442851893.

The spelling of 54674821 in words is "fifty-four million, six hundred seventy-four thousand, eight hundred twenty-one".