56307500 has 60 divisors (see below), whose sum is σ = 124910016. Its totient is φ = 22200000.

The previous prime is 56307499. The next prime is 56307509. The reversal of 56307500 is 570365.

It is a self number, because there is not a number n which added to its sum of digits gives 56307500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56307509) 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, 252389 + ... + 252611.

Almost surely, 2^56307500 is an apocalyptic number.

56307500 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 56307500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62455008).

56307500 is an abundant number, since it is smaller than the sum of its proper divisors (68602516).

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

56307500 is a wasteful number, since it uses less digits than its factorization.

56307500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 56307500 is about 7503.8323542041. The cubic root of 56307500 is about 383.2852281579.

Adding to 56307500 its reverse (570365), we get a palindrome (56877865).

The spelling of 56307500 in words is "fifty-six million, three hundred seven thousand, five hundred".