56545100 has 18 divisors (see below), whose sum is σ = 122703084. Its totient is φ = 22618000.

The previous prime is 56545091. The next prime is 56545103. The reversal of 56545100 is 154565.

It is a self number, because there is not a number n which added to its sum of digits gives 56545100.

It is not an unprimeable number, because it can be changed into a prime (56545103) 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, 282626 + ... + 282825.

It is an arithmetic number, because the mean of its divisors is an integer number (6816838).

Almost surely, 2^56545100 is an apocalyptic number.

56545100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56545100 is an abundant number, since it is smaller than the sum of its proper divisors (66157984).

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

56545100 is a wasteful number, since it uses less digits than its factorization.

56545100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565465 (or 565458 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 56545100 is about 7519.6475981259. The cubic root of 56545100 is about 383.8235861390.

Adding to 56545100 its reverse (154565), we get a palindrome (56699665).

The spelling of 56545100 in words is "fifty-six million, five hundred forty-five thousand, one hundred".