551331013225 has 12 divisors (see below), whose sum is σ = 683742859804. Its totient is φ = 441005195520.

The previous prime is 551331013201. The next prime is 551331013229. The reversal of 551331013225 is 522310133155.

It can be written as a sum of positive squares in 6 ways, for example, as 36098480016 + 515232533209 = 189996^2 + 717797^2 .

It is not a de Polignac number, because 551331013225 - 2¹⁵ = 551330980457 is a prime.

It is a super-2 number, since 2×551331013225² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551331013229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1301244 + ... + 1672093.

Almost surely, 2^551331013225 is an apocalyptic number.

It is an amenable number.

551331013225 is a deficient number, since it is larger than the sum of its proper divisors (132411846579).

551331013225 is a wasteful number, since it uses less digits than its factorization.

551331013225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980764 (or 2980759 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 551331013225 in words is "five hundred fifty-one billion, three hundred thirty-one million, thirteen thousand, two hundred twenty-five".