85508380 has 12 divisors (see below), whose sum is σ = 179567640. Its totient is φ = 34203344.

The previous prime is 85508347. The next prime is 85508387. The reversal of 85508380 is 8380558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85508387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2137690 + ... + 2137729.

It is an arithmetic number, because the mean of its divisors is an integer number (14963970).

Almost surely, 2^85508380 is an apocalyptic number.

It is an amenable number.

85508380 is an abundant number, since it is smaller than the sum of its proper divisors (94059260).

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

85508380 is a wasteful number, since it uses less digits than its factorization.

85508380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275428 (or 4275426 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 85508380 is about 9247.0741318538. The cubic root of 85508380 is about 440.5577980774.

The spelling of 85508380 in words is "eighty-five million, five hundred eight thousand, three hundred eighty".