54021573 has 12 divisors (see below), whose sum is σ = 80921568. Its totient is φ = 36014220.

The previous prime is 54021553. The next prime is 54021581. The reversal of 54021573 is 37512045.

It is a happy number.

54021573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54021573 - 2¹³ = 54013381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54021553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110913 + ... + 111398.

It is an arithmetic number, because the mean of its divisors is an integer number (6743464).

Almost surely, 2^54021573 is an apocalyptic number.

It is an amenable number.

54021573 is a deficient number, since it is larger than the sum of its proper divisors (26899995).

54021573 is an equidigital number, since it uses as much as digits as its factorization.

54021573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222326 (or 222314 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 54021573 is about 7349.9369385050. The cubic root of 54021573 is about 378.0266421131.

The spelling of 54021573 in words is "fifty-four million, twenty-one thousand, five hundred seventy-three".