809448552 has 96 divisors (see below), whose sum is σ = 2480194080. Its totient is φ = 245280960.

The previous prime is 809448529. The next prime is 809448559. The reversal of 809448552 is 255844908.

809448552 is a `hidden beast` number, since 8 + 0 + 94 + 4 + 8 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 809448498 and 809448507.

It is not an unprimeable number, because it can be changed into a prime (809448559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2458 + ... + 40310.

It is an arithmetic number, because the mean of its divisors is an integer number (25835355).

Almost surely, 2^809448552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 809448552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240097040).

809448552 is an abundant number, since it is smaller than the sum of its proper divisors (1670745528).

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

809448552 is a wasteful number, since it uses less digits than its factorization.

809448552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37885 (or 37869 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 809448552 is about 28450.8093382245. The cubic root of 809448552 is about 931.9581633734.

It can be divided in two parts, 809448 and 552, that added together give a 4-th power (810000 = 30⁴).

The spelling of 809448552 in words is "eight hundred nine million, four hundred forty-eight thousand, five hundred fifty-two".