21333045325 has 12 divisors (see below), whose sum is σ = 26480939040. Its totient is φ = 17048395760.

The previous prime is 21333045313. The next prime is 21333045347. The reversal of 21333045325 is 52354033312.

It is not a de Polignac number, because 21333045325 - 2¹⁹ = 21332521037 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, 426865 + ... + 474214.

It is an arithmetic number, because the mean of its divisors is an integer number (2206744920).

Almost surely, 2^21333045325 is an apocalyptic number.

21333045325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21333045325 is a deficient number, since it is larger than the sum of its proper divisors (5147893715).

21333045325 is an equidigital number, since it uses as much as digits as its factorization.

21333045325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902036 (or 902031 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 21333045325 its reverse (52354033312), we get a palindrome (73687078637).

The spelling of 21333045325 in words is "twenty-one billion, three hundred thirty-three million, forty-five thousand, three hundred twenty-five".