85110551 has 4 divisors (see below), whose sum is σ = 90117072. Its totient is φ = 80104032.

The previous prime is 85110541. The next prime is 85110559. The reversal of 85110551 is 15501158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15501158 = 2 ⋅7750579.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85110551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85110551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85110559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503235 + ... + 2503268.

It is an arithmetic number, because the mean of its divisors is an integer number (22529268).

Almost surely, 2^85110551 is an apocalyptic number.

85110551 is a deficient number, since it is larger than the sum of its proper divisors (5006521).

85110551 is a wasteful number, since it uses less digits than its factorization.

85110551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006520.

The product of its (nonzero) digits is 1000, while the sum is 26.

The square root of 85110551 is about 9225.5379788932. The cubic root of 85110551 is about 439.8735018589.

The spelling of 85110551 in words is "eighty-five million, one hundred ten thousand, five hundred fifty-one".