56020404 has 24 divisors (see below), whose sum is σ = 142597728. Its totient is φ = 16975840.

The previous prime is 56020403. The next prime is 56020409. The reversal of 56020404 is 40402065.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56020403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212067 + ... + 212330.

It is an arithmetic number, because the mean of its divisors is an integer number (5941572).

Almost surely, 2^56020404 is an apocalyptic number.

It is an amenable number.

56020404 is an abundant number, since it is smaller than the sum of its proper divisors (86577324).

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

56020404 is a wasteful number, since it uses less digits than its factorization.

56020404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424415 (or 424413 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 56020404 is about 7484.6779489835. The cubic root of 56020404 is about 382.6326969216.

Adding to 56020404 its reverse (40402065), we get a palindrome (96422469).

The spelling of 56020404 in words is "fifty-six million, twenty thousand, four hundred four".