53421100 has 18 divisors (see below), whose sum is σ = 115924004. Its totient is φ = 21368400.

The previous prime is 53421097. The next prime is 53421127. The reversal of 53421100 is 112435.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267006 + ... + 267205.

Almost surely, 2^53421100 is an apocalyptic number.

53421100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53421100 is an abundant number, since it is smaller than the sum of its proper divisors (62502904).

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

53421100 is a wasteful number, since it uses less digits than its factorization.

53421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534225 (or 534218 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 53421100 is about 7308.9739361965. The cubic root of 53421100 is about 376.6207773822.

Adding to 53421100 its reverse (112435), we get a palindrome (53533535).

The spelling of 53421100 in words is "fifty-three million, four hundred twenty-one thousand, one hundred".