85575751 has 2 divisors, whose sum is σ = 85575752. Its totient is φ = 85575750.

The previous prime is 85575727. The next prime is 85575757. The reversal of 85575751 is 15757558.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85575751 - 2¹¹ = 85573703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85575698 and 85575707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85575757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42787875 + 42787876.

It is an arithmetic number, because the mean of its divisors is an integer number (42787876).

Almost surely, 2^85575751 is an apocalyptic number.

85575751 is a deficient number, since it is larger than the sum of its proper divisors (1).

85575751 is an equidigital number, since it uses as much as digits as its factorization.

85575751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 245000, while the sum is 43.

The square root of 85575751 is about 9250.7162425404. The cubic root of 85575751 is about 440.6734710589.

The spelling of 85575751 in words is "eighty-five million, five hundred seventy-five thousand, seven hundred fifty-one".