85627125221 has 16 divisors (see below), whose sum is σ = 93721320000. Its totient is φ = 77584790400.

The previous prime is 85627125217. The next prime is 85627125251. The reversal of 85627125221 is 12252172658.

It is a cyclic number.

It is not a de Polignac number, because 85627125221 - 2² = 85627125217 is a prime.

It is a super-2 number, since 2×85627125221² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85627125251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12661481 + ... + 12668241.

It is an arithmetic number, because the mean of its divisors is an integer number (5857582500).

Almost surely, 2^85627125221 is an apocalyptic number.

It is an amenable number.

85627125221 is a deficient number, since it is larger than the sum of its proper divisors (8094194779).

85627125221 is a wasteful number, since it uses less digits than its factorization.

85627125221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10420.

The product of its digits is 134400, while the sum is 41.

Adding to 85627125221 its reverse (12252172658), we get a palindrome (97879297879).

The spelling of 85627125221 in words is "eighty-five billion, six hundred twenty-seven million, one hundred twenty-five thousand, two hundred twenty-one".