54890563 has 32 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 40300416.

The previous prime is 54890519. The next prime is 54890579. The reversal of 54890563 is 36509845.

It is not a de Polignac number, because 54890563 - 2¹⁷ = 54759491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54890593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91338 + ... + 91936.

It is an arithmetic number, because the mean of its divisors is an integer number (2268000).

Almost surely, 2^54890563 is an apocalyptic number.

54890563 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

54890563 is a deficient number, since it is larger than the sum of its proper divisors (17685437).

54890563 is a wasteful number, since it uses less digits than its factorization.

54890563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 54890563 is about 7408.8165721659. The cubic root of 54890563 is about 380.0428460460.

The spelling of 54890563 in words is "fifty-four million, eight hundred ninety thousand, five hundred sixty-three".