54198961 has 2 divisors, whose sum is σ = 54198962. Its totient is φ = 54198960.

The previous prime is 54198889. The next prime is 54198973. The reversal of 54198961 is 16989145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35224225 + 18974736 = 5935^2 + 4356^2 .

It is a cyclic number.

It is not a de Polignac number, because 54198961 - 2¹¹ = 54196913 is a prime.

It is not a weakly prime, because it can be changed into another prime (54198161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27099480 + 27099481.

It is an arithmetic number, because the mean of its divisors is an integer number (27099481).

Almost surely, 2^54198961 is an apocalyptic number.

It is an amenable number.

54198961 is a deficient number, since it is larger than the sum of its proper divisors (1).

54198961 is an equidigital number, since it uses as much as digits as its factorization.

54198961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 54198961 is about 7361.9943629427. The cubic root of 54198961 is about 378.4399592516.

The spelling of 54198961 in words is "fifty-four million, one hundred ninety-eight thousand, nine hundred sixty-one".