54805881 has 16 divisors (see below), whose sum is σ = 79160256. Its totient is φ = 33527616.

The previous prime is 54805879. The next prime is 54805897. The reversal of 54805881 is 18850845.

It is not a de Polignac number, because 54805881 - 2¹ = 54805879 is a prime.

It is a super-2 number, since 2×54805881² = 6007369184372322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (54805811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2686 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (4947516).

Almost surely, 2^54805881 is an apocalyptic number.

It is an amenable number.

54805881 is a deficient number, since it is larger than the sum of its proper divisors (24354375).

54805881 is a wasteful number, since it uses less digits than its factorization.

54805881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8312.

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 54805881 is about 7403.0994184868. The cubic root of 54805881 is about 379.8473093839.

The spelling of 54805881 in words is "fifty-four million, eight hundred five thousand, eight hundred eighty-one".