2170525087 has 2 divisors, whose sum is σ = 2170525088. Its totient is φ = 2170525086.

The previous prime is 2170525081. The next prime is 2170525121. The reversal of 2170525087 is 7805250712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2170525087 - 2⁷ = 2170524959 is a prime.

It is a super-2 number, since 2×2170525087² = 9422358306592715138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2170525081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085262543 + 1085262544.

It is an arithmetic number, because the mean of its divisors is an integer number (1085262544).

Almost surely, 2^2170525087 is an apocalyptic number.

2170525087 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170525087 is an equidigital number, since it uses as much as digits as its factorization.

2170525087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 2170525087 is about 46588.8944599461. The cubic root of 2170525087 is about 1294.7570067275.

Adding to 2170525087 its reverse (7805250712), we get a palindrome (9975775799).

The spelling of 2170525087 in words is "two billion, one hundred seventy million, five hundred twenty-five thousand, eighty-seven".