56921750 has 32 divisors (see below), whose sum is σ = 108051840. Its totient is φ = 22449600.

The previous prime is 56921749. The next prime is 56921773. The reversal of 56921750 is 5712965.

56921750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56921750.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16691 + ... + 19809.

It is an arithmetic number, because the mean of its divisors is an integer number (3376620).

Almost surely, 2^56921750 is an apocalyptic number.

56921750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56921750 is a deficient number, since it is larger than the sum of its proper divisors (51130090).

56921750 is a wasteful number, since it uses less digits than its factorization.

56921750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 56921750 is about 7544.6504226505. The cubic root of 56921750 is about 384.6739241666.

The spelling of 56921750 in words is "fifty-six million, nine hundred twenty-one thousand, seven hundred fifty".