85479550 has 24 divisors (see below), whose sum is σ = 171223416. Its totient is φ = 31561440.

The previous prime is 85479533. The next prime is 85479551. The reversal of 85479550 is 5597458.

It is a junction number, because it is equal to n+sod(n) for n = 85479497 and 85479506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85479551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65104 + ... + 66403.

It is an arithmetic number, because the mean of its divisors is an integer number (7134309).

Almost surely, 2^85479550 is an apocalyptic number.

85479550 is an abundant number, since it is smaller than the sum of its proper divisors (85743866).

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

85479550 is a wasteful number, since it uses less digits than its factorization.

85479550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131532 (or 131527 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 85479550 is about 9245.5151289693. The cubic root of 85479550 is about 440.5082796987.

The spelling of 85479550 in words is "eighty-five million, four hundred seventy-nine thousand, five hundred fifty".