85025251651 has 2 divisors, whose sum is σ = 85025251652. Its totient is φ = 85025251650.

The previous prime is 85025251609. The next prime is 85025251657. The reversal of 85025251651 is 15615252058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85025251651 - 2⁹ = 85025251139 is a prime.

It is not a weakly prime, because it can be changed into another prime (85025251657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42512625825 + 42512625826.

It is an arithmetic number, because the mean of its divisors is an integer number (42512625826).

Almost surely, 2^85025251651 is an apocalyptic number.

85025251651 is a deficient number, since it is larger than the sum of its proper divisors (1).

85025251651 is an equidigital number, since it uses as much as digits as its factorization.

85025251651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120000, while the sum is 40.

The spelling of 85025251651 in words is "eighty-five billion, twenty-five million, two hundred fifty-one thousand, six hundred fifty-one".