54871830 has 128 divisors (see below), whose sum is σ = 160352640. Its totient is φ = 13436928.

The previous prime is 54871819. The next prime is 54871897. The reversal of 54871830 is 3817845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 284214 + ... + 284406.

It is an arithmetic number, because the mean of its divisors is an integer number (1252755).

Almost surely, 2^54871830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54871830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80176320).

54871830 is an abundant number, since it is smaller than the sum of its proper divisors (105480810).

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

54871830 is a wasteful number, since it uses less digits than its factorization.

54871830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 54871830 is about 7407.5522272880. The cubic root of 54871830 is about 379.9996075712. Note that the first 3 decimals are identical.

The spelling of 54871830 in words is "fifty-four million, eight hundred seventy-one thousand, eight hundred thirty".