85425133 has 4 divisors (see below), whose sum is σ = 87411808. Its totient is φ = 83438460.

The previous prime is 85425103. The next prime is 85425139. The reversal of 85425133 is 33152458.

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 85425133 - 2⁹ = 85424621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85425095 and 85425104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85425139) 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, 993273 + ... + 993358.

It is an arithmetic number, because the mean of its divisors is an integer number (21852952).

Almost surely, 2^85425133 is an apocalyptic number.

It is an amenable number.

85425133 is a deficient number, since it is larger than the sum of its proper divisors (1986675).

85425133 is a wasteful number, since it uses less digits than its factorization.

85425133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986674.

The product of its digits is 14400, while the sum is 31.

The square root of 85425133 is about 9242.5717741330. The cubic root of 85425133 is about 440.4147827644.

It can be divided in two parts, 85425 and 133, that added together give a palindrome (85558).

The spelling of 85425133 in words is "eighty-five million, four hundred twenty-five thousand, one hundred thirty-three".