56755404 has 60 divisors (see below), whose sum is σ = 150935400. Its totient is φ = 18591552.

The previous prime is 56755381. The next prime is 56755409. The reversal of 56755404 is 40455765.

It is a happy number.

56755404 is a `hidden beast` number, since 567 + 55 + 40 + 4 = 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 (56755409) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17632 + ... + 20600.

It is an arithmetic number, because the mean of its divisors is an integer number (2515590).

Almost surely, 2^56755404 is an apocalyptic number.

56755404 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56755404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75467700).

56755404 is an abundant number, since it is smaller than the sum of its proper divisors (94179996).

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

56755404 is a wasteful number, since it uses less digits than its factorization.

56755404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044 (or 3033 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 56755404 is about 7533.6182541990. The cubic root of 56755404 is about 384.2988396399.

The spelling of 56755404 in words is "fifty-six million, seven hundred fifty-five thousand, four hundred four".