55830726 has 48 divisors (see below), whose sum is σ = 138937344. Its totient is φ = 15872112.

The previous prime is 55830673. The next prime is 55830757. The reversal of 55830726 is 62703855.

55830726 is a `hidden beast` number, since 5 + 583 + 0 + 72 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27105 + ... + 29091.

It is an arithmetic number, because the mean of its divisors is an integer number (2894528).

Almost surely, 2^55830726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55830726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69468672).

55830726 is an abundant number, since it is smaller than the sum of its proper divisors (83106618).

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

55830726 is a wasteful number, since it uses less digits than its factorization.

55830726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225 (or 2222 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55830726 is about 7471.9961188427. The cubic root of 55830726 is about 382.2003599746.

The spelling of 55830726 in words is "fifty-five million, eight hundred thirty thousand, seven hundred twenty-six".