85546451 has 4 divisors (see below), whose sum is σ = 85619352. Its totient is φ = 85473552.

The previous prime is 85546441. The next prime is 85546477. The reversal of 85546451 is 15464558.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15464558 = 2 ⋅7732279.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85546451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85546411) 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, 34661 + ... + 37046.

It is an arithmetic number, because the mean of its divisors is an integer number (21404838).

Almost surely, 2^85546451 is an apocalyptic number.

85546451 is a deficient number, since it is larger than the sum of its proper divisors (72901).

85546451 is a wasteful number, since it uses less digits than its factorization.

85546451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72900.

The product of its digits is 96000, while the sum is 38.

The square root of 85546451 is about 9249.1324458027. The cubic root of 85546451 is about 440.6231717376.

The spelling of 85546451 in words is "eighty-five million, five hundred forty-six thousand, four hundred fifty-one".