54969961 has 2 divisors, whose sum is σ = 54969962. Its totient is φ = 54969960.

The previous prime is 54969923. The next prime is 54969973. The reversal of 54969961 is 16996945.

54969961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52838361 + 2131600 = 7269^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 54969961 - 2¹³ = 54961769 is a prime.

It is a super-2 number, since 2×54969961² = 6043393224683042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54969361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27484980 + 27484981.

It is an arithmetic number, because the mean of its divisors is an integer number (27484981).

Almost surely, 2^54969961 is an apocalyptic number.

It is an amenable number.

54969961 is a deficient number, since it is larger than the sum of its proper divisors (1).

54969961 is an equidigital number, since it uses as much as digits as its factorization.

54969961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 49.

The square root of 54969961 is about 7414.1729815267. The cubic root of 54969961 is about 380.2259989897.

The spelling of 54969961 in words is "fifty-four million, nine hundred sixty-nine thousand, nine hundred sixty-one".