54771885 has 96 divisors (see below), whose sum is σ = 115015680. Its totient is φ = 23587200.

The previous prime is 54771881. The next prime is 54771887. The reversal of 54771885 is 58817745.

It is a happy number.

It is not a de Polignac number, because 54771885 - 2² = 54771881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (313600) is a multiple of the sum of its prime divisors (196).

It is a self number, because there is not a number n which added to its sum of digits gives 54771885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54771881) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 693276 + ... + 693354.

It is an arithmetic number, because the mean of its divisors is an integer number (1198080).

Almost surely, 2^54771885 is an apocalyptic number.

It is an amenable number.

54771885 is an abundant number, since it is smaller than the sum of its proper divisors (60243795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54771885 is a wasteful number, since it uses less digits than its factorization.

54771885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 196 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The square root of 54771885 is about 7400.8029969727. The cubic root of 54771885 is about 379.7687535803.

The spelling of 54771885 in words is "fifty-four million, seven hundred seventy-one thousand, eight hundred eighty-five".