551513225 has 6 divisors (see below), whose sum is σ = 683876430. Its totient is φ = 441210560.

The previous prime is 551513197. The next prime is 551513233. The reversal of 551513225 is 522315155.

551513225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 5683456 + 545829769 = 2384^2 + 23363^2 .

It is not a de Polignac number, because 551513225 - 2²⁴ = 534736009 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11030240 + ... + 11030289.

It is an arithmetic number, because the mean of its divisors is an integer number (113979405).

Almost surely, 2^551513225 is an apocalyptic number.

It is an amenable number.

551513225 is a deficient number, since it is larger than the sum of its proper divisors (132363205).

551513225 is a wasteful number, since it uses less digits than its factorization.

551513225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22060539 (or 22060534 counting only the distinct ones).

The product of its digits is 7500, while the sum is 29.

The square root of 551513225 is about 23484.3187041907. The cubic root of 551513225 is about 820.0719870373.

The spelling of 551513225 in words is "five hundred fifty-one million, five hundred thirteen thousand, two hundred twenty-five".