25324531 has 2 divisors, whose sum is σ = 25324532. Its totient is φ = 25324530.

The previous prime is 25324529. The next prime is 25324567. The reversal of 25324531 is 13542352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25324531 - 2¹ = 25324529 is a prime.

It is a super-2 number, since 2×25324531² = 1282663740739922, which contains 22 as substring.

Together with 25324529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25324496 and 25324505.

It is not a weakly prime, because it can be changed into another prime (25324501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12662265 + 12662266.

It is an arithmetic number, because the mean of its divisors is an integer number (12662266).

Almost surely, 2^25324531 is an apocalyptic number.

25324531 is a deficient number, since it is larger than the sum of its proper divisors (1).

25324531 is an equidigital number, since it uses as much as digits as its factorization.

25324531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 25324531 is about 5032.3484577283. The cubic root of 25324531 is about 293.6615840135.

Adding to 25324531 its reverse (13542352), we get a palindrome (38866883).

The spelling of 25324531 in words is "twenty-five million, three hundred twenty-four thousand, five hundred thirty-one".