25100087 has 2 divisors, whose sum is σ = 25100088. Its totient is φ = 25100086.

The previous prime is 25100059. The next prime is 25100123. The reversal of 25100087 is 78000152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25100087 - 2¹⁶ = 25034551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25100017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12550043 + 12550044.

It is an arithmetic number, because the mean of its divisors is an integer number (12550044).

Almost surely, 2^25100087 is an apocalyptic number.

25100087 is a deficient number, since it is larger than the sum of its proper divisors (1).

25100087 is an equidigital number, since it uses as much as digits as its factorization.

25100087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 25100087 is about 5009.9987025946. The cubic root of 25100087 is about 292.7914624639.

The spelling of 25100087 in words is "twenty-five million, one hundred thousand, eighty-seven".