85352251 has 4 divisors (see below), whose sum is σ = 85403512. Its totient is φ = 85300992.

The previous prime is 85352219. The next prime is 85352261. The reversal of 85352251 is 15225358.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85352251 - 2⁵ = 85352219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85352261) 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, 23046 + ... + 26491.

It is an arithmetic number, because the mean of its divisors is an integer number (21350878).

Almost surely, 2^85352251 is an apocalyptic number.

85352251 is a deficient number, since it is larger than the sum of its proper divisors (51261).

85352251 is a wasteful number, since it uses less digits than its factorization.

85352251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51260.

The product of its digits is 12000, while the sum is 31.

The square root of 85352251 is about 9238.6281990347. The cubic root of 85352251 is about 440.2894978441.

The spelling of 85352251 in words is "eighty-five million, three hundred fifty-two thousand, two hundred fifty-one".