54020557 has 4 divisors (see below), whose sum is σ = 54555516. Its totient is φ = 53485600.

The previous prime is 54020539. The next prime is 54020567. The reversal of 54020557 is 75502045.

54020557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49154121 + 4866436 = 7011^2 + 2206^2 .

It is a cyclic number.

It is not a de Polignac number, because 54020557 - 2⁷ = 54020429 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 (54020567) 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 3 ways as a sum of consecutive naturals, for example, 267328 + ... + 267529.

It is an arithmetic number, because the mean of its divisors is an integer number (13638879).

Almost surely, 2^54020557 is an apocalyptic number.

It is an amenable number.

54020557 is a deficient number, since it is larger than the sum of its proper divisors (534959).

54020557 is a wasteful number, since it uses less digits than its factorization.

54020557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534958.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 54020557 is about 7349.8678219407. The cubic root of 54020557 is about 378.0242722113.

The spelling of 54020557 in words is "fifty-four million, twenty thousand, five hundred fifty-seven".