855245580 has 48 divisors (see below), whose sum is σ = 2736787200. Its totient is φ = 195484608.

The previous prime is 855245569. The next prime is 855245591. The reversal of 855245580 is 85542558.

It is an interprime number because it is at equal distance from previous prime (855245569) and next prime (855245591).

It is a super-4 number, since 4×855245580⁴ (a number of 37 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017730 + ... + 1018569.

It is an arithmetic number, because the mean of its divisors is an integer number (57016400).

Almost surely, 2^855245580 is an apocalyptic number.

It is an amenable number.

855245580 is an abundant number, since it is smaller than the sum of its proper divisors (1881541620).

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

855245580 is a wasteful number, since it uses less digits than its factorization.

855245580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036318 (or 2036316 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 42.

The square root of 855245580 is about 29244.5820623240. The cubic root of 855245580 is about 949.2128585971.

The spelling of 855245580 in words is "eight hundred fifty-five million, two hundred forty-five thousand, five hundred eighty".