551625571225 has 27 divisors (see below), whose sum is σ = 701299496989. Its totient is φ = 430418196800.

The previous prime is 551625571157. The next prime is 551625571229. The reversal of 551625571225 is 522175526155.

The square root of 551625571225 is 742715.

It is a perfect power (a square), and thus also a powerful number.

551625571225 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 4 ways, for example, as 232188095881 + 319437475344 = 481859^2 + 565188^2 .

It is not a de Polignac number, because 551625571225 - 2¹⁷ = 551625440153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551625571229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 152254764 + ... + 152258386.

Almost surely, 2^551625571225 is an apocalyptic number.

551625571225 is the 742715-th square number.

551625571225 is the 371358-th centered octagonal number.

It is an amenable number.

551625571225 is a deficient number, since it is larger than the sum of its proper divisors (149673925764).

551625571225 is an frugal number, since it uses more digits than its factorization.

551625571225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7338 (or 3669 counting only the distinct ones).

The product of its digits is 1050000, while the sum is 46.

The spelling of 551625571225 in words is "five hundred fifty-one billion, six hundred twenty-five million, five hundred seventy-one thousand, two hundred twenty-five".