21352152325 has 12 divisors (see below), whose sum is σ = 30259050400. Its totient is φ = 14641475760.

The previous prime is 21352152271. The next prime is 21352152343. The reversal of 21352152325 is 52325125312.

It is not a de Polignac number, because 21352152325 - 2¹⁵ = 21352119557 is a prime.

It is a congruent number.

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, 61005975 + ... + 61006324.

Almost surely, 2^21352152325 is an apocalyptic number.

21352152325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21352152325 is a deficient number, since it is larger than the sum of its proper divisors (8906898075).

21352152325 is a wasteful number, since it uses less digits than its factorization.

21352152325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122012316 (or 122012311 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

Adding to 21352152325 its reverse (52325125312), we get a palindrome (73677277637).

The spelling of 21352152325 in words is "twenty-one billion, three hundred fifty-two million, one hundred fifty-two thousand, three hundred twenty-five".