25623487 has 2 divisors, whose sum is σ = 25623488. Its totient is φ = 25623486.

The previous prime is 25623467. The next prime is 25623509. The reversal of 25623487 is 78432652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25623487 - 2⁷ = 25623359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25623407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12811743 + 12811744.

It is an arithmetic number, because the mean of its divisors is an integer number (12811744).

Almost surely, 2^25623487 is an apocalyptic number.

25623487 is a deficient number, since it is larger than the sum of its proper divisors (1).

25623487 is an equidigital number, since it uses as much as digits as its factorization.

25623487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 25623487 is about 5061.9647371352. The cubic root of 25623487 is about 294.8126244742.

The spelling of 25623487 in words is "twenty-five million, six hundred twenty-three thousand, four hundred eighty-seven".