85504100 has 36 divisors (see below), whose sum is σ = 202414128. Its totient is φ = 31092000.

The previous prime is 85504099. The next prime is 85504103. The reversal of 85504100 is 140558.

It is a super-2 number, since 2×85504100² = 14621902233620000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85504103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37766 + ... + 39965.

Almost surely, 2^85504100 is an apocalyptic number.

It is an amenable number.

85504100 is an abundant number, since it is smaller than the sum of its proper divisors (116910028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85504100 is a wasteful number, since it uses less digits than its factorization.

85504100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77756 (or 77749 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 85504100 is about 9246.8427044046. The cubic root of 85504100 is about 440.5504474574.

Adding to 85504100 its reverse (140558), we get a palindrome (85644658).

The spelling of 85504100 in words is "eighty-five million, five hundred four thousand, one hundred".