21025522233053 has 8 divisors (see below), whose sum is σ = 22643705914368. Its totient is φ = 19407457954224.

The previous prime is 21025522233047. The next prime is 21025522233059. The reversal of 21025522233053 is 35033222552012.

It is an interprime number because it is at equal distance from previous prime (21025522233047) and next prime (21025522233059).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21025522233053 - 2¹⁸ = 21025521970909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21025522233059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29484725 + ... + 30189402.

It is an arithmetic number, because the mean of its divisors is an integer number (2830463239296).

Almost surely, 2^{21025522233053} is an apocalyptic number.

It is an amenable number.

21025522233053 is a deficient number, since it is larger than the sum of its proper divisors (1618183681315).

21025522233053 is a wasteful number, since it uses less digits than its factorization.

21025522233053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59701243.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 21025522233053 its reverse (35033222552012), we get a palindrome (56058744785065).

The spelling of 21025522233053 in words is "twenty-one trillion, twenty-five billion, five hundred twenty-two million, two hundred thirty-three thousand, fifty-three".