251060087 has 2 divisors, whose sum is σ = 251060088. Its totient is φ = 251060086.

The previous prime is 251060081. The next prime is 251060093. The reversal of 251060087 is 780060152.

It is a balanced prime because it is at equal distance from previous prime (251060081) and next prime (251060093).

It is a cyclic number.

It is not a de Polignac number, because 251060087 - 2⁴ = 251060071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (251060081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125530043 + 125530044.

It is an arithmetic number, because the mean of its divisors is an integer number (125530044).

Almost surely, 2^251060087 is an apocalyptic number.

251060087 is a deficient number, since it is larger than the sum of its proper divisors (1).

251060087 is an equidigital number, since it uses as much as digits as its factorization.

251060087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 251060087 is about 15844.8757331826. The cubic root of 251060087 is about 630.8496866282.

The spelling of 251060087 in words is "two hundred fifty-one million, sixty thousand, eighty-seven".