25475587 has 2 divisors, whose sum is σ = 25475588. Its totient is φ = 25475586.

The previous prime is 25475579. The next prime is 25475617. The reversal of 25475587 is 78557452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25475587 - 2³ = 25475579 is a prime.

It is not a weakly prime, because it can be changed into another prime (25478587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12737793 + 12737794.

It is an arithmetic number, because the mean of its divisors is an integer number (12737794).

Almost surely, 2^25475587 is an apocalyptic number.

25475587 is a deficient number, since it is larger than the sum of its proper divisors (1).

25475587 is an equidigital number, since it uses as much as digits as its factorization.

25475587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 392000, while the sum is 43.

The square root of 25475587 is about 5047.3346431557. The cubic root of 25475587 is about 294.2443053941.

It can be divided in two parts, 25475 and 587, that added together give a palindrome (26062).

The spelling of 25475587 in words is "twenty-five million, four hundred seventy-five thousand, five hundred eighty-seven".