816548625 has 48 divisors (see below), whose sum is σ = 1503380736. Its totient is φ = 426199200.

The previous prime is 816548611. The next prime is 816548651. The reversal of 816548625 is 526845618.

816548625 is a `hidden beast` number, since 8 + 16 + 5 + 4 + 8 + 625 = 666.

816548625 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 816548625 - 2¹⁵ = 816515857 is a prime.

It is a super-3 number, since 3×816548625³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 45154 + ... + 60596.

It is an arithmetic number, because the mean of its divisors is an integer number (31320432).

Almost surely, 2^816548625 is an apocalyptic number.

It is an amenable number.

816548625 is a deficient number, since it is larger than the sum of its proper divisors (686832111).

816548625 is a wasteful number, since it uses less digits than its factorization.

816548625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15511 (or 15498 counting only the distinct ones).

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

The square root of 816548625 is about 28575.3149588942. The cubic root of 816548625 is about 934.6751232924.

The spelling of 816548625 in words is "eight hundred sixteen million, five hundred forty-eight thousand, six hundred twenty-five".