54111949 has 2 divisors, whose sum is σ = 54111950. Its totient is φ = 54111948.

The previous prime is 54111929. The next prime is 54111961. The reversal of 54111949 is 94911145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48399849 + 5712100 = 6957^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 54111949 - 2⁵ = 54111917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54111929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27055974 + 27055975.

It is an arithmetic number, because the mean of its divisors is an integer number (27055975).

Almost surely, 2^54111949 is an apocalyptic number.

It is an amenable number.

54111949 is a deficient number, since it is larger than the sum of its proper divisors (1).

54111949 is an equidigital number, since it uses as much as digits as its factorization.

54111949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 34.

The square root of 54111949 is about 7356.0824492389. The cubic root of 54111949 is about 378.2373326429.

The spelling of 54111949 in words is "fifty-four million, one hundred eleven thousand, nine hundred forty-nine".