25250087 has 2 divisors, whose sum is σ = 25250088. Its totient is φ = 25250086.

The previous prime is 25250063. The next prime is 25250123. The reversal of 25250087 is 78005252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25250087 - 2¹² = 25245991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25250047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12625043 + 12625044.

It is an arithmetic number, because the mean of its divisors is an integer number (12625044).

Almost surely, 2^25250087 is an apocalyptic number.

25250087 is a deficient number, since it is larger than the sum of its proper divisors (1).

25250087 is an equidigital number, since it uses as much as digits as its factorization.

25250087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 25250087 is about 5024.9464673765. The cubic root of 25250087 is about 293.3735523652.

The spelling of 25250087 in words is "twenty-five million, two hundred fifty thousand, eighty-seven".