551230225 has 48 divisors (see below), whose sum is σ = 849945600. Its totient is φ = 345312000.

The previous prime is 551230187. The next prime is 551230237. The reversal of 551230225 is 522032155.

It is a happy number.

It is not a de Polignac number, because 551230225 - 2¹¹ = 551228177 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 551230225.

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, 228576 + ... + 230974.

It is an arithmetic number, because the mean of its divisors is an integer number (17707200).

Almost surely, 2^551230225 is an apocalyptic number.

It is an amenable number.

551230225 is a deficient number, since it is larger than the sum of its proper divisors (298715375).

551230225 is a wasteful number, since it uses less digits than its factorization.

551230225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530 (or 2525 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 551230225 is about 23478.2926338352. The cubic root of 551230225 is about 819.9316941913.

The spelling of 551230225 in words is "five hundred fifty-one million, two hundred thirty thousand, two hundred twenty-five".