25821323 has 8 divisors (see below), whose sum is σ = 29651520. Its totient is φ = 22238280.

The previous prime is 25821307. The next prime is 25821329. The reversal of 25821323 is 32312852.

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 25821323 - 2⁴ = 25821307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25821292 and 25821301.

It is not an unprimeable number, because it can be changed into a prime (25821329) 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, 61565 + ... + 61982.

It is an arithmetic number, because the mean of its divisors is an integer number (3706440).

Almost surely, 2^25821323 is an apocalyptic number.

25821323 is a deficient number, since it is larger than the sum of its proper divisors (3830197).

25821323 is a wasteful number, since it uses less digits than its factorization.

25821323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123577.

The product of its digits is 2880, while the sum is 26.

The square root of 25821323 is about 5081.4685869343. The cubic root of 25821323 is about 295.5694182343.

The spelling of 25821323 in words is "twenty-five million, eight hundred twenty-one thousand, three hundred twenty-three".