85310580 has 48 divisors (see below), whose sum is σ = 239359680. Its totient is φ = 22702848.

The previous prime is 85310557. The next prime is 85310587. The reversal of 85310580 is 8501358.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85310587) 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, 35992 + ... + 38288.

It is an arithmetic number, because the mean of its divisors is an integer number (4986660).

Almost surely, 2^85310580 is an apocalyptic number.

It is an amenable number.

85310580 is an abundant number, since it is smaller than the sum of its proper divisors (154049100).

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

85310580 is a wasteful number, since it uses less digits than its factorization.

85310580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 85310580 is about 9236.3726646341. The cubic root of 85310580 is about 440.2178329100.

The spelling of 85310580 in words is "eighty-five million, three hundred ten thousand, five hundred eighty".