56855450 has 12 divisors (see below), whose sum is σ = 105751230. Its totient is φ = 22742160.

The previous prime is 56855443. The next prime is 56855459. The reversal of 56855450 is 5455865.

It can be written as a sum of positive squares in 3 ways, for example, as 41229241 + 15626209 = 6421^2 + 3953^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56855459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 568505 + ... + 568604.

Almost surely, 2^56855450 is an apocalyptic number.

56855450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56855450 is a deficient number, since it is larger than the sum of its proper divisors (48895780).

56855450 is a wasteful number, since it uses less digits than its factorization.

56855450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137121 (or 1137116 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The square root of 56855450 is about 7540.2553007176. The cubic root of 56855450 is about 384.5245156100.

The spelling of 56855450 in words is "fifty-six million, eight hundred fifty-five thousand, four hundred fifty".