56271400 has 24 divisors (see below), whose sum is σ = 130831470. Its totient is φ = 22508480.

The previous prime is 56271367. The next prime is 56271403. The reversal of 56271400 is 417265.

It can be written as a sum of positive squares in 3 ways, for example, as 48080356 + 8191044 = 6934^2 + 2862^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (56271403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140479 + ... + 140878.

Almost surely, 2^56271400 is an apocalyptic number.

56271400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56271400 is an abundant number, since it is smaller than the sum of its proper divisors (74560070).

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

56271400 is a wasteful number, since it uses less digits than its factorization.

56271400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281373 (or 281364 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 56271400 is about 7501.4265310006. The cubic root of 56271400 is about 383.2032997306.

Adding to 56271400 its reverse (417265), we get a palindrome (56688665).

The spelling of 56271400 in words is "fifty-six million, two hundred seventy-one thousand, four hundred".