54857563 has 4 divisors (see below), whose sum is σ = 54988288. Its totient is φ = 54726840.

The previous prime is 54857557. The next prime is 54857567. The reversal of 54857563 is 36575845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36575845 = 5 ⋅7315169.

It is a cyclic number.

It is not a de Polignac number, because 54857563 - 2¹⁷ = 54726491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54857567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64731 + ... + 65572.

It is an arithmetic number, because the mean of its divisors is an integer number (13747072).

Almost surely, 2^54857563 is an apocalyptic number.

54857563 is a deficient number, since it is larger than the sum of its proper divisors (130725).

54857563 is a wasteful number, since it uses less digits than its factorization.

54857563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130724.

The product of its digits is 504000, while the sum is 43.

The square root of 54857563 is about 7406.5891610106. The cubic root of 54857563 is about 379.9666706687.

The spelling of 54857563 in words is "fifty-four million, eight hundred fifty-seven thousand, five hundred sixty-three".