54111563 has 12 divisors (see below), whose sum is σ = 62611080. Its totient is φ = 46601280.

The previous prime is 54111557. The next prime is 54111611. The reversal of 54111563 is 36511145.

It is not a de Polignac number, because 54111563 - 2⁸ = 54111307 is a prime.

It is a super-2 number, since 2×54111563² = 5856122500605938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54111503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9470 + ... + 14067.

It is an arithmetic number, because the mean of its divisors is an integer number (5217590).

Almost surely, 2^54111563 is an apocalyptic number.

54111563 is a deficient number, since it is larger than the sum of its proper divisors (8499517).

54111563 is a wasteful number, since it uses less digits than its factorization.

54111563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23578 (or 23567 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 54111563 is about 7356.0562124008. The cubic root of 54111563 is about 378.2364332731.

The spelling of 54111563 in words is "fifty-four million, one hundred eleven thousand, five hundred sixty-three".