85213020 has 48 divisors (see below), whose sum is σ = 246828960. Its totient is φ = 21939456.

The previous prime is 85213019. The next prime is 85213031. The reversal of 85213020 is 2031258.

It is a super-2 number, since 2×85213020² = 14522517555040800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22747 + ... + 26226.

It is an arithmetic number, because the mean of its divisors is an integer number (5142270).

Almost surely, 2^85213020 is an apocalyptic number.

It is an amenable number.

85213020 is an abundant number, since it is smaller than the sum of its proper divisors (161615940).

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

85213020 is a wasteful number, since it uses less digits than its factorization.

85213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49014 (or 49012 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 85213020 is about 9231.0898598161. The cubic root of 85213020 is about 440.0499598918.

Adding to 85213020 its reverse (2031258), we get a palindrome (87244278).

The spelling of 85213020 in words is "eighty-five million, two hundred thirteen thousand, twenty".