56723020 has 24 divisors (see below), whose sum is σ = 121890384. Its totient is φ = 22161216.

The previous prime is 56723003. The next prime is 56723021. The reversal of 56723020 is 2032765.

It is not an unprimeable number, because it can be changed into a prime (56723021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32119 + ... + 33838.

It is an arithmetic number, because the mean of its divisors is an integer number (5078766).

Almost surely, 2^56723020 is an apocalyptic number.

It is an amenable number.

56723020 is an abundant number, since it is smaller than the sum of its proper divisors (65167364).

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

56723020 is a wasteful number, since it uses less digits than its factorization.

56723020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66009 (or 66007 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 56723020 is about 7531.4686482784. The cubic root of 56723020 is about 384.2257335242.

Adding to 56723020 its reverse (2032765), we get a palindrome (58755785).

The spelling of 56723020 in words is "fifty-six million, seven hundred twenty-three thousand, twenty".