55740930 has 64 divisors (see below), whose sum is σ = 156038400. Its totient is φ = 12738432.

The previous prime is 55740917. The next prime is 55740973. The reversal of 55740930 is 3904755.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55740891 and 55740900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7582 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (2438100).

Almost surely, 2^55740930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55740930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78019200).

55740930 is an abundant number, since it is smaller than the sum of its proper divisors (100297470).

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

55740930 is a wasteful number, since it uses less digits than its factorization.

55740930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448 (or 5434 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 55740930 is about 7465.9848647047. The cubic root of 55740930 is about 381.9953445519.

The spelling of 55740930 in words is "fifty-five million, seven hundred forty thousand, nine hundred thirty".