85311260 has 24 divisors (see below), whose sum is σ = 179426016. Its totient is φ = 34072640.

The previous prime is 85311241. The next prime is 85311263. The reversal of 85311260 is 6211358.

It is a super-2 number, since 2×85311260² = 14556022165575200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85311263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11990 + ... + 17730.

It is an arithmetic number, because the mean of its divisors is an integer number (7476084).

Almost surely, 2^85311260 is an apocalyptic number.

It is an amenable number.

85311260 is an abundant number, since it is smaller than the sum of its proper divisors (94114756).

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

85311260 is a wasteful number, since it uses less digits than its factorization.

85311260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493 (or 6491 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 85311260 is about 9236.4094755484. The cubic root of 85311260 is about 440.2190025474.

The spelling of 85311260 in words is "eighty-five million, three hundred eleven thousand, two hundred sixty".