21035880053 has 16 divisors (see below), whose sum is σ = 22622212800. Its totient is φ = 19488750336.

The previous prime is 21035880011. The next prime is 21035880083. The reversal of 21035880053 is 35008853012.

It is a cyclic number.

It is not a de Polignac number, because 21035880053 - 2⁸ = 21035879797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21035879995 and 21035880022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21035880083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1758350 + ... + 1770272.

It is an arithmetic number, because the mean of its divisors is an integer number (1413888300).

Almost surely, 2^21035880053 is an apocalyptic number.

It is an amenable number.

21035880053 is a deficient number, since it is larger than the sum of its proper divisors (1586332747).

21035880053 is a wasteful number, since it uses less digits than its factorization.

21035880053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13556.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 21035880053 in words is "twenty-one billion, thirty-five million, eight hundred eighty thousand, fifty-three".