25572331 has 2 divisors, whose sum is σ = 25572332. Its totient is φ = 25572330.

The previous prime is 25572329. The next prime is 25572353. The reversal of 25572331 is 13327552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25572331 - 2¹ = 25572329 is a prime.

It is a super-2 number, since 2×25572331² = 1307888225547122, which contains 22 as substring.

Together with 25572329, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25572331.

It is not a weakly prime, because it can be changed into another prime (25572031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12786165 + 12786166.

It is an arithmetic number, because the mean of its divisors is an integer number (12786166).

Almost surely, 2^25572331 is an apocalyptic number.

25572331 is a deficient number, since it is larger than the sum of its proper divisors (1).

25572331 is an equidigital number, since it uses as much as digits as its factorization.

25572331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 28.

The square root of 25572331 is about 5056.9092339096. The cubic root of 25572331 is about 294.6163009188.

Adding to 25572331 its reverse (13327552), we get a palindrome (38899883).

The spelling of 25572331 in words is "twenty-five million, five hundred seventy-two thousand, three hundred thirty-one".