25585523 has 2 divisors, whose sum is σ = 25585524. Its totient is φ = 25585522.

The previous prime is 25585481. The next prime is 25585543. The reversal of 25585523 is 32558552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25585523 - 2¹⁰ = 25584499 is a prime.

It is not a weakly prime, because it can be changed into another prime (25585543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12792761 + 12792762.

It is an arithmetic number, because the mean of its divisors is an integer number (12792762).

Almost surely, 2^25585523 is an apocalyptic number.

25585523 is a deficient number, since it is larger than the sum of its proper divisors (1).

25585523 is an equidigital number, since it uses as much as digits as its factorization.

25585523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60000, while the sum is 35.

The square root of 25585523 is about 5058.2134197758. The cubic root of 25585523 is about 294.6669534530. Note that the first 3 decimals are identical.

The spelling of 25585523 in words is "twenty-five million, five hundred eighty-five thousand, five hundred twenty-three".