550825 has 12 divisors (see below), whose sum is σ = 745488. Its totient is φ = 400400.

The previous prime is 550813. The next prime is 550831. The reversal of 550825 is 528055.

550825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550825 - 2¹⁵ = 518057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

550825 is a modest number, since divided by 825 gives 550 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 550825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 727 + ... + 1276.

It is an arithmetic number, because the mean of its divisors is an integer number (62124).

2⁵⁵⁰⁸²⁵ is an apocalyptic number.

550825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550825 is a deficient number, since it is larger than the sum of its proper divisors (194663).

550825 is a wasteful number, since it uses less digits than its factorization.

550825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 550825 is about 742.1758551718. The cubic root of 550825 is about 81.9730726576.

The spelling of 550825 in words is "five hundred fifty thousand, eight hundred twenty-five".