25475623 has 2 divisors, whose sum is σ = 25475624. Its totient is φ = 25475622.

The previous prime is 25475621. The next prime is 25475629. The reversal of 25475623 is 32657452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25475623 - 2¹ = 25475621 is a prime.

Together with 25475621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25475621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12737811 + 12737812.

It is an arithmetic number, because the mean of its divisors is an integer number (12737812).

Almost surely, 2^25475623 is an apocalyptic number.

25475623 is a deficient number, since it is larger than the sum of its proper divisors (1).

25475623 is an equidigital number, since it uses as much as digits as its factorization.

25475623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 34.

The square root of 25475623 is about 5047.3382093931. The cubic root of 25475623 is about 294.2444439947.

The spelling of 25475623 in words is "twenty-five million, four hundred seventy-five thousand, six hundred twenty-three".