85023751 has 4 divisors (see below), whose sum is σ = 85046104. Its totient is φ = 85001400.

The previous prime is 85023739. The next prime is 85023761. The reversal of 85023751 is 15732058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15732058 = 2 ⋅7866029.

It is a cyclic number.

It is not a de Polignac number, because 85023751 - 2¹⁹ = 84499463 is a prime.

It is a super-2 number, since 2×85023751² = 14458076468220002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85023761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3885 + ... + 13606.

It is an arithmetic number, because the mean of its divisors is an integer number (21261526).

Almost surely, 2^85023751 is an apocalyptic number.

85023751 is a deficient number, since it is larger than the sum of its proper divisors (22353).

85023751 is a wasteful number, since it uses less digits than its factorization.

85023751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22352.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 85023751 is about 9220.8324461515. The cubic root of 85023751 is about 439.7239159909.

The spelling of 85023751 in words is "eighty-five million, twenty-three thousand, seven hundred fifty-one".