54896981 has 2 divisors, whose sum is σ = 54896982. Its totient is φ = 54896980.

The previous prime is 54896977. The next prime is 54897019. The reversal of 54896981 is 18969845.

It is a happy number.

54896981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52432081 + 2464900 = 7241^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 54896981 - 2² = 54896977 is a prime.

It is a super-2 number, since 2×54896981² = 6027357045828722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54896911) 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, 27448490 + 27448491.

It is an arithmetic number, because the mean of its divisors is an integer number (27448491).

Almost surely, 2^54896981 is an apocalyptic number.

It is an amenable number.

54896981 is a deficient number, since it is larger than the sum of its proper divisors (1).

54896981 is an equidigital number, since it uses as much as digits as its factorization.

54896981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 50.

The square root of 54896981 is about 7409.2496921078. The cubic root of 54896981 is about 380.0576574562.

The spelling of 54896981 in words is "fifty-four million, eight hundred ninety-six thousand, nine hundred eighty-one".