55730461329 has 9 divisors (see below), whose sum is σ = 80500578249. Its totient is φ = 37153168740.

The previous prime is 55730461309. The next prime is 55730461343. The reversal of 55730461329 is 92316403755.

The square root of 55730461329 is 236073.

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

55730461329 is a `hidden beast` number, since 5 + 5 + 7 + 3 + 0 + 4 + 613 + 29 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 55730461329 - 2¹⁵ = 55730428561 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55730461309) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 668874 + ... + 747564.

Almost surely, 2^55730461329 is an apocalyptic number.

55730461329 is the 236073-rd square number.

55730461329 is the 118037-th centered octagonal number.

It is an amenable number.

55730461329 is a deficient number, since it is larger than the sum of its proper divisors (24770116920).

55730461329 is an frugal number, since it uses more digits than its factorization.

55730461329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157388 (or 78694 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 55730461329 in words is "fifty-five billion, seven hundred thirty million, four hundred sixty-one thousand, three hundred twenty-nine".