54758421 has 6 divisors (see below), whose sum is σ = 79095510. Its totient is φ = 36505608.

The previous prime is 54758413. The next prime is 54758443. The reversal of 54758421 is 12485745.

54758421 is a `hidden beast` number, since 54 + 7 + 584 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30404196 + 24354225 = 5514^2 + 4935^2 .

It is not a de Polignac number, because 54758421 - 2³ = 54758413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54758471) 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 5 ways as a sum of consecutive naturals, for example, 3042126 + ... + 3042143.

It is an arithmetic number, because the mean of its divisors is an integer number (13182585).

Almost surely, 2^54758421 is an apocalyptic number.

It is an amenable number.

54758421 is a deficient number, since it is larger than the sum of its proper divisors (24337089).

54758421 is a wasteful number, since it uses less digits than its factorization.

54758421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084275 (or 6084272 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 54758421 is about 7399.8933100417. The cubic root of 54758421 is about 379.7376328357.

The spelling of 54758421 in words is "fifty-four million, seven hundred fifty-eight thousand, four hundred twenty-one".