21452355167325 has 24 divisors (see below), whose sum is σ = 35468176700928. Its totient is φ = 11441164855680.

The previous prime is 21452355167273. The next prime is 21452355167377. The reversal of 21452355167325 is 52376155325412.

It is an interprime number because it is at equal distance from previous prime (21452355167273) and next prime (21452355167377).

It is not a de Polignac number, because 21452355167325 - 2¹⁷ = 21452355036253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8914897 + ... + 11062553.

It is an arithmetic number, because the mean of its divisors is an integer number (1477840695872).

Almost surely, 2^{21452355167325} is an apocalyptic number.

21452355167325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21452355167325 is a deficient number, since it is larger than the sum of its proper divisors (14015821533603).

21452355167325 is a wasteful number, since it uses less digits than its factorization.

21452355167325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280853 (or 2280848 counting only the distinct ones).

The product of its digits is 7560000, while the sum is 51.

The spelling of 21452355167325 in words is "twenty-one trillion, four hundred fifty-two billion, three hundred fifty-five million, one hundred sixty-seven thousand, three hundred twenty-five".