551331140225 has 12 divisors (see below), whose sum is σ = 683692231596. Its totient is φ = 441038062080.

The previous prime is 551331140203. The next prime is 551331140233. The reversal of 551331140225 is 522041133155.

It can be written as a sum of positive squares in 6 ways, for example, as 42800989456 + 508530150769 = 206884^2 + 713113^2 .

It is not a de Polignac number, because 551331140225 - 2¹⁴ = 551331123841 is a prime.

It is a super-2 number, since 2×551331140225² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551331140191 and 551331140200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247112 + ... + 1078761.

It is an arithmetic number, because the mean of its divisors is an integer number (56974352633).

Almost surely, 2^551331140225 is an apocalyptic number.

It is an amenable number.

551331140225 is a deficient number, since it is larger than the sum of its proper divisors (132361091371).

551331140225 is a wasteful number, since it uses less digits than its factorization.

551331140225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342516 (or 1342511 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 551331140225 in words is "five hundred fifty-one billion, three hundred thirty-one million, one hundred forty thousand, two hundred twenty-five".