54391830 has 32 divisors (see below), whose sum is σ = 133727328. Its totient is φ = 14150400.

The previous prime is 54391829. The next prime is 54391847. The reversal of 54391830 is 3819345.

It is a junction number, because it is equal to n+sod(n) for n = 54391791 and 54391800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20881 + ... + 23340.

It is an arithmetic number, because the mean of its divisors is an integer number (4178979).

Almost surely, 2^54391830 is an apocalyptic number.

54391830 is an abundant number, since it is smaller than the sum of its proper divisors (79335498).

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

54391830 is a wasteful number, since it uses less digits than its factorization.

54391830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44272.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 54391830 is about 7375.0816944628. The cubic root of 54391830 is about 378.8883253426. Note that the first 3 decimals are identical.

The spelling of 54391830 in words is "fifty-four million, three hundred ninety-one thousand, eight hundred thirty".