56750000 has 70 divisors (see below), whose sum is σ = 138045108. Its totient is φ = 22600000.

The previous prime is 56749999. The next prime is 56750011. The reversal of 56750000 is 5765.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 249887 + ... + 250113.

Almost surely, 2^56750000 is an apocalyptic number.

56750000 is a gapful number since it is divisible by the number (50) 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 56750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69022554).

56750000 is an abundant number, since it is smaller than the sum of its proper divisors (81295108).

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

56750000 is an frugal number, since it uses more digits than its factorization.

56750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 56750000 is about 7533.2595866597. The cubic root of 56750000 is about 384.2866421708.

Adding to 56750000 its reverse (5765), we get a palindrome (56755765).

The spelling of 56750000 in words is "fifty-six million, seven hundred fifty thousand".