85051651 has 2 divisors, whose sum is σ = 85051652. Its totient is φ = 85051650.

The previous prime is 85051621. The next prime is 85051667. The reversal of 85051651 is 15615058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85051651 - 2¹³ = 85043459 is a prime.

It is not a weakly prime, because it can be changed into another prime (85051621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42525825 + 42525826.

It is an arithmetic number, because the mean of its divisors is an integer number (42525826).

Almost surely, 2^85051651 is an apocalyptic number.

85051651 is a deficient number, since it is larger than the sum of its proper divisors (1).

85051651 is an equidigital number, since it uses as much as digits as its factorization.

85051651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 85051651 is about 9222.3452006526. The cubic root of 85051651 is about 439.7720082609.

The spelling of 85051651 in words is "eighty-five million, fifty-one thousand, six hundred fifty-one".