55500055550461 has 2 divisors, whose sum is σ = 55500055550462. Its totient is φ = 55500055550460.

The previous prime is 55500055550417. The next prime is 55500055550519. The reversal of 55500055550461 is 16405555000555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33664294784836 + 21835760765625 = 5802094^2 + 4672875^2 .

It is a cyclic number.

It is not a de Polignac number, because 55500055550461 - 2¹⁵ = 55500055517693 is a prime.

It is a super-2 number, since 2×55500055550461² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55500055550411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750027775230 + 27750027775231.

It is an arithmetic number, because the mean of its divisors is an integer number (27750027775231).

Almost surely, 2^{55500055550461} is an apocalyptic number.

It is an amenable number.

55500055550461 is a deficient number, since it is larger than the sum of its proper divisors (1).

55500055550461 is an equidigital number, since it uses as much as digits as its factorization.

55500055550461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1875000, while the sum is 46.

The spelling of 55500055550461 in words is "fifty-five trillion, five hundred billion, fifty-five million, five hundred fifty thousand, four hundred sixty-one".