87525811 has 2 divisors, whose sum is σ = 87525812. Its totient is φ = 87525810.

The previous prime is 87525731. The next prime is 87525817. The reversal of 87525811 is 11852578.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87525811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87525817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43762905 + 43762906.

It is an arithmetic number, because the mean of its divisors is an integer number (43762906).

Almost surely, 2^87525811 is an apocalyptic number.

87525811 is a deficient number, since it is larger than the sum of its proper divisors (1).

87525811 is an equidigital number, since it uses as much as digits as its factorization.

87525811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 37.

The square root of 87525811 is about 9355.5230211891. The cubic root of 87525811 is about 443.9956493230.

The spelling of 87525811 in words is "eighty-seven million, five hundred twenty-five thousand, eight hundred eleven".