54105949 has 2 divisors, whose sum is σ = 54105950. Its totient is φ = 54105948.

The previous prime is 54105929. The next prime is 54105971. The reversal of 54105949 is 94950145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42341049 + 11764900 = 6507^2 + 3430^2 .

It is a cyclic number.

It is not a de Polignac number, because 54105949 - 2⁹ = 54105437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54105929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27052974 + 27052975.

It is an arithmetic number, because the mean of its divisors is an integer number (27052975).

Almost surely, 2^54105949 is an apocalyptic number.

It is an amenable number.

54105949 is a deficient number, since it is larger than the sum of its proper divisors (1).

54105949 is an equidigital number, since it uses as much as digits as its factorization.

54105949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 54105949 is about 7355.6746121617. The cubic root of 54105949 is about 378.2233523181.

The spelling of 54105949 in words is "fifty-four million, one hundred five thousand, nine hundred forty-nine".