555181461025 has 9 divisors (see below), whose sum is σ = 688429631353. Its totient is φ = 444142188400.

The previous prime is 555181460971. The next prime is 555181461073. The reversal of 555181461025 is 520164181555.

The square root of 555181461025 is 745105.

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

It can be written as a sum of positive squares in 4 ways, for example, as 186168949729 + 369012511296 = 431473^2 + 607464^2 .

It is not a de Polignac number, because 555181461025 - 2¹⁷ = 555181329953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3651015 + ... + 3800035.

Almost surely, 2^555181461025 is an apocalyptic number.

555181461025 is the 745105-th square number.

555181461025 is the 372553-rd centered octagonal number.

It is an amenable number.

555181461025 is a deficient number, since it is larger than the sum of its proper divisors (133248170328).

555181461025 is an frugal number, since it uses more digits than its factorization.

555181461025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298052 (or 149026 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 43.

The spelling of 555181461025 in words is "five hundred fifty-five billion, one hundred eighty-one million, four hundred sixty-one thousand, twenty-five".