55175388461 has 2 divisors, whose sum is σ = 55175388462. Its totient is φ = 55175388460.

The previous prime is 55175388397. The next prime is 55175388473. The reversal of 55175388461 is 16488357155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29188014025 + 25987374436 = 170845^2 + 161206^2 .

It is a cyclic number.

It is not a de Polignac number, because 55175388461 - 2⁶ = 55175388397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55175388061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27587694230 + 27587694231.

It is an arithmetic number, because the mean of its divisors is an integer number (27587694231).

Almost surely, 2^55175388461 is an apocalyptic number.

It is an amenable number.

55175388461 is a deficient number, since it is larger than the sum of its proper divisors (1).

55175388461 is an equidigital number, since it uses as much as digits as its factorization.

55175388461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032000, while the sum is 53.

The spelling of 55175388461 in words is "fifty-five billion, one hundred seventy-five million, three hundred eighty-eight thousand, four hundred sixty-one".