21253055022633 has 16 divisors (see below), whose sum is σ = 32385701943296. Its totient is φ = 12144567511440.

The previous prime is 21253055022599. The next prime is 21253055022733. The reversal of 21253055022633 is 33622055035212.

It is not a de Polignac number, because 21253055022633 - 2⁴⁰ = 20153543394857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21253055022591 and 21253055022600.

It is not an unprimeable number, because it can be changed into a prime (21253055022733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7060998 + ... + 9610608.

It is an arithmetic number, because the mean of its divisors is an integer number (2024106371456).

Almost surely, 2^{21253055022633} is an apocalyptic number.

It is an amenable number.

21253055022633 is a deficient number, since it is larger than the sum of its proper divisors (11132646920663).

21253055022633 is a wasteful number, since it uses less digits than its factorization.

21253055022633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946564.

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 21253055022633 in words is "twenty-one trillion, two hundred fifty-three billion, fifty-five million, twenty-two thousand, six hundred thirty-three".