54021672 has 48 divisors (see below), whose sum is σ = 147188340. Its totient is φ = 17899008.

The previous prime is 54021647. The next prime is 54021673. The reversal of 54021672 is 27612045.

It can be written as a sum of positive squares in 2 ways, for example, as 53494596 + 527076 = 7314^2 + 726^2 .

It is not an unprimeable number, because it can be changed into a prime (54021673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10288 + ... + 14624.

Almost surely, 2^54021672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54021672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73594170).

54021672 is an abundant number, since it is smaller than the sum of its proper divisors (93166668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54021672 is a wasteful number, since it uses less digits than its factorization.

54021672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522 (or 4515 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 54021672 is about 7349.9436732536. The cubic root of 54021672 is about 378.0268730370.

The spelling of 54021672 in words is "fifty-four million, twenty-one thousand, six hundred seventy-two".