54721842 has 16 divisors (see below), whose sum is σ = 125078592. Its totient is φ = 15634800.

The previous prime is 54721841. The next prime is 54721847. The reversal of 54721842 is 24812745.

It is not an unprimeable number, because it can be changed into a prime (54721841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651409 + ... + 651492.

It is an arithmetic number, because the mean of its divisors is an integer number (7817412).

Almost surely, 2^54721842 is an apocalyptic number.

54721842 is an abundant number, since it is smaller than the sum of its proper divisors (70356750).

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

54721842 is a wasteful number, since it uses less digits than its factorization.

54721842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302913.

The product of its digits is 17920, while the sum is 33.

The square root of 54721842 is about 7397.4213074557. The cubic root of 54721842 is about 379.6530582215.

The spelling of 54721842 in words is "fifty-four million, seven hundred twenty-one thousand, eight hundred forty-two".