53981521100 has 36 divisors (see below), whose sum is σ = 126150665424. Its totient is φ = 19931638080.

The previous prime is 53981521093. The next prime is 53981521133. The reversal of 53981521100 is 112518935.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20760824 + ... + 20763423.

Almost surely, 2^53981521100 is an apocalyptic number.

53981521100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53981521100 is an abundant number, since it is smaller than the sum of its proper divisors (72169144324).

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

53981521100 is a wasteful number, since it uses less digits than its factorization.

53981521100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41524274 (or 41524267 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 35.

The spelling of 53981521100 in words is "fifty-three billion, nine hundred eighty-one million, five hundred twenty-one thousand, one hundred".