551013225 has 24 divisors (see below), whose sum is σ = 1041153600. Its totient is φ = 251891520.

The previous prime is 551013193. The next prime is 551013233. The reversal of 551013225 is 522310155.

It is a happy number.

It is not a de Polignac number, because 551013225 - 2⁵ = 551013193 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 551013195 and 551013204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524250 + ... + 525299.

It is an arithmetic number, because the mean of its divisors is an integer number (43381400).

Almost surely, 2^551013225 is an apocalyptic number.

It is an amenable number.

551013225 is a deficient number, since it is larger than the sum of its proper divisors (490140375).

551013225 is a wasteful number, since it uses less digits than its factorization.

551013225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049569 (or 1049564 counting only the distinct ones).

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

The square root of 551013225 is about 23473.6708888917. The cubic root of 551013225 is about 819.8240872893.

The spelling of 551013225 in words is "five hundred fifty-one million, thirteen thousand, two hundred twenty-five".