551625 has 16 divisors (see below), whose sum is σ = 918528. Its totient is φ = 294000.

The previous prime is 551597. The next prime is 551651. The reversal of 551625 is 526155.

It is not a de Polignac number, because 551625 - 2⁹ = 551113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551595 and 551604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361 + ... + 1110.

It is an arithmetic number, because the mean of its divisors is an integer number (57408).

2⁵⁵¹⁶²⁵ is an apocalyptic number.

It is an amenable number.

551625 is a deficient number, since it is larger than the sum of its proper divisors (366903).

551625 is a wasteful number, since it uses less digits than its factorization.

551625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1479 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 551625 is about 742.7146154480. The cubic root of 551625 is about 82.0127384533.

It can be divided in two parts, 551 and 625, that added together give a triangular number (1176 = T₄₈).

The spelling of 551625 in words is "five hundred fifty-one thousand, six hundred twenty-five".