56007720 has 64 divisors (see below), whose sum is σ = 186696000. Its totient is φ = 14935104.

The previous prime is 56007719. The next prime is 56007727. The reversal of 56007720 is 2770065.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (56007727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24850 + ... + 27009.

It is an arithmetic number, because the mean of its divisors is an integer number (2917125).

Almost surely, 2^56007720 is an apocalyptic number.

It is an amenable number.

56007720 is an abundant number, since it is smaller than the sum of its proper divisors (130688280).

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

56007720 is a wasteful number, since it uses less digits than its factorization.

56007720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51879 (or 51869 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 56007720 is about 7483.8305699688. The cubic root of 56007720 is about 382.6038164952.

Adding to 56007720 its reverse (2770065), we get a palindrome (58777785).

The spelling of 56007720 in words is "fifty-six million, seven thousand, seven hundred twenty".