550821675 has 72 divisors (see below), whose sum is σ = 992199888. Its totient is φ = 268697600.

The previous prime is 550821637. The next prime is 550821697. The reversal of 550821675 is 576128055.

It is not a de Polignac number, because 550821675 - 2⁹ = 550821163 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2143147 + ... + 2143403.

It is an arithmetic number, because the mean of its divisors is an integer number (13780554).

Almost surely, 2^550821675 is an apocalyptic number.

550821675 is a deficient number, since it is larger than the sum of its proper divisors (441378213).

550821675 is a wasteful number, since it uses less digits than its factorization.

550821675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 550821675 is about 23469.5904310237. The cubic root of 550821675 is about 819.7290771653.

The spelling of 550821675 in words is "five hundred fifty million, eight hundred twenty-one thousand, six hundred seventy-five".