85325553 has 6 divisors (see below), whose sum is σ = 123248034. Its totient is φ = 56883696.

The previous prime is 85325531. The next prime is 85325573. The reversal of 85325553 is 35552358.

85325553 is a `hidden beast` number, since 85 + 3 + 25 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56295009 + 29030544 = 7503^2 + 5388^2 .

It is not a de Polignac number, because 85325553 - 2⁵ = 85325521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85325573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4740300 + ... + 4740317.

It is an arithmetic number, because the mean of its divisors is an integer number (20541339).

Almost surely, 2^85325553 is an apocalyptic number.

It is an amenable number.

85325553 is a deficient number, since it is larger than the sum of its proper divisors (37922481).

85325553 is a wasteful number, since it uses less digits than its factorization.

85325553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9480623 (or 9480620 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 85325553 is about 9237.1831745397. The cubic root of 85325553 is about 440.2435858550.

The spelling of 85325553 in words is "eighty-five million, three hundred twenty-five thousand, five hundred fifty-three".