55994620 has 48 divisors (see below), whose sum is σ = 129024000. Its totient is φ = 20243520.

The previous prime is 55994591. The next prime is 55994623. The reversal of 55994620 is 2649955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55994623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43141 + ... + 44419.

It is an arithmetic number, because the mean of its divisors is an integer number (2688000).

Almost surely, 2^55994620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55994620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64512000).

55994620 is an abundant number, since it is smaller than the sum of its proper divisors (73029380).

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

55994620 is a wasteful number, since it uses less digits than its factorization.

55994620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 55994620 is about 7482.9552985435. The cubic root of 55994620 is about 382.5739842933.

The spelling of 55994620 in words is "fifty-five million, nine hundred ninety-four thousand, six hundred twenty".