85199953 has 4 divisors (see below), whose sum is σ = 86644080. Its totient is φ = 83755828.

The previous prime is 85199923. The next prime is 85199969. The reversal of 85199953 is 35999158.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85199953 - 2⁵ = 85199921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85199897 and 85199906.

It is not an unprimeable number, because it can be changed into a prime (85199923) 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, 721975 + ... + 722092.

It is an arithmetic number, because the mean of its divisors is an integer number (21661020).

Almost surely, 2^85199953 is an apocalyptic number.

It is an amenable number.

85199953 is a deficient number, since it is larger than the sum of its proper divisors (1444127).

85199953 is a wasteful number, since it uses less digits than its factorization.

85199953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444126.

The product of its digits is 437400, while the sum is 49.

The square root of 85199953 is about 9230.3820614317. The cubic root of 85199953 is about 440.0274655720.

The spelling of 85199953 in words is "eighty-five million, one hundred ninety-nine thousand, nine hundred fifty-three".