54573257 has 4 divisors (see below), whose sum is σ = 54719940. Its totient is φ = 54426576.

The previous prime is 54573221. The next prime is 54573313. The reversal of 54573257 is 75237545.

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 35772361 + 18800896 = 5981^2 + 4336^2 .

It is a cyclic number.

It is not a de Polignac number, because 54573257 - 2¹⁶ = 54507721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54573257.

It is not an unprimeable number, because it can be changed into a prime (54572257) 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 3 ways as a sum of consecutive naturals, for example, 72782 + ... + 73527.

It is an arithmetic number, because the mean of its divisors is an integer number (13679985).

Almost surely, 2^54573257 is an apocalyptic number.

It is an amenable number.

54573257 is a deficient number, since it is larger than the sum of its proper divisors (146683).

54573257 is a wasteful number, since it uses less digits than its factorization.

54573257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146682.

The product of its digits is 147000, while the sum is 38.

The square root of 54573257 is about 7387.3714540424. The cubic root of 54573257 is about 379.3091255754.

The spelling of 54573257 in words is "fifty-four million, five hundred seventy-three thousand, two hundred fifty-seven".