55704780 has 96 divisors (see below), whose sum is σ = 177408000. Its totient is φ = 14503104.

The previous prime is 55704763. The next prime is 55704787. The reversal of 55704780 is 8740755.

55704780 is a `hidden beast` number, since 5 + 570 + 4 + 7 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55704787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22021 + ... + 24419.

It is an arithmetic number, because the mean of its divisors is an integer number (1848000).

Almost surely, 2^55704780 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 55704780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88704000).

55704780 is an abundant number, since it is smaller than the sum of its proper divisors (121703220).

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

55704780 is a wasteful number, since it uses less digits than its factorization.

55704780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460 (or 2452 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 55704780 is about 7463.5634920593. The cubic root of 55704780 is about 381.9127474488.

The spelling of 55704780 in words is "fifty-five million, seven hundred four thousand, seven hundred eighty".