54331830 has 256 divisors, whose sum is σ = 186624000. Its totient is φ = 10948608.

The previous prime is 54331829. The next prime is 54331889. The reversal of 54331830 is 3813345.

It is a happy number.

It is a super-2 number, since 2×54331830² = 5903895502297800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 54331794 and 54331803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 610426 + ... + 610514.

It is an arithmetic number, because the mean of its divisors is an integer number (729000).

Almost surely, 2^54331830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54331830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93312000).

54331830 is an abundant number, since it is smaller than the sum of its proper divisors (132292170).

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

54331830 is a wasteful number, since it uses less digits than its factorization.

54331830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 54331830 is about 7371.0128205017. The cubic root of 54331830 is about 378.7489559818.

The spelling of 54331830 in words is "fifty-four million, three hundred thirty-one thousand, eight hundred thirty".