54051961 has 2 divisors, whose sum is σ = 54051962. Its totient is φ = 54051960.

The previous prime is 54051929. The next prime is 54051971. The reversal of 54051961 is 16915045.

54051961 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., 51552400 + 2499561 = 7180^2 + 1581^2 .

It is a cyclic number.

It is not a de Polignac number, because 54051961 - 2⁵ = 54051929 is a prime.

It is a super-2 number, since 2×54051961² = 5843228975891042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54051971) 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, 27025980 + 27025981.

It is an arithmetic number, because the mean of its divisors is an integer number (27025981).

Almost surely, 2^54051961 is an apocalyptic number.

It is an amenable number.

54051961 is a deficient number, since it is larger than the sum of its proper divisors (1).

54051961 is an equidigital number, since it uses as much as digits as its factorization.

54051961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 54051961 is about 7352.0038764952. The cubic root of 54051961 is about 378.0975108400.

The spelling of 54051961 in words is "fifty-four million, fifty-one thousand, nine hundred sixty-one".