55182961 has 2 divisors, whose sum is σ = 55182962. Its totient is φ = 55182960.

The previous prime is 55182893. The next prime is 55182989. The reversal of 55182961 is 16928155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45819361 + 9363600 = 6769^2 + 3060^2 .

It is a cyclic number.

It is not a de Polignac number, because 55182961 - 2¹¹ = 55180913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55182961.

It is not a weakly prime, because it can be changed into another prime (55182991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27591480 + 27591481.

It is an arithmetic number, because the mean of its divisors is an integer number (27591481).

Almost surely, 2^55182961 is an apocalyptic number.

It is an amenable number.

55182961 is a deficient number, since it is larger than the sum of its proper divisors (1).

55182961 is an equidigital number, since it uses as much as digits as its factorization.

55182961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 37.

The square root of 55182961 is about 7428.5234737463. The cubic root of 55182961 is about 380.7164714554.

The spelling of 55182961 in words is "fifty-five million, one hundred eighty-two thousand, nine hundred sixty-one".