21325095407 has 8 divisors (see below), whose sum is σ = 26587132032. Its totient is φ = 16616957400.

The previous prime is 21325095401. The next prime is 21325095413. The reversal of 21325095407 is 70459052312.

It is an interprime number because it is at equal distance from previous prime (21325095401) and next prime (21325095413).

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 21325095407 - 2¹⁴ = 21325079023 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 (21325095401) 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, 138474569 + ... + 138474722.

It is an arithmetic number, because the mean of its divisors is an integer number (3323391504).

Almost surely, 2^21325095407 is an apocalyptic number.

21325095407 is a deficient number, since it is larger than the sum of its proper divisors (5262036625).

21325095407 is a wasteful number, since it uses less digits than its factorization.

21325095407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276949309.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 21325095407 in words is "twenty-one billion, three hundred twenty-five million, ninety-five thousand, four hundred seven".