25432031 has 2 divisors, whose sum is σ = 25432032. Its totient is φ = 25432030.

The previous prime is 25432021. The next prime is 25432087. The reversal of 25432031 is 13023452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25432031 - 2¹⁸ = 25169887 is a prime.

It is a super-2 number, since 2×25432031² = 1293576401569922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25431994 and 25432012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25432021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12716015 + 12716016.

It is an arithmetic number, because the mean of its divisors is an integer number (12716016).

Almost surely, 2^25432031 is an apocalyptic number.

25432031 is a deficient number, since it is larger than the sum of its proper divisors (1).

25432031 is an equidigital number, since it uses as much as digits as its factorization.

25432031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 25432031 is about 5043.0180447823. The cubic root of 25432031 is about 294.0765184082.

Adding to 25432031 its reverse (13023452), we get a palindrome (38455483).

The spelling of 25432031 in words is "twenty-five million, four hundred thirty-two thousand, thirty-one".