54995957 has 2 divisors, whose sum is σ = 54995958. Its totient is φ = 54995956.

The previous prime is 54995933. The next prime is 54995989. The reversal of 54995957 is 75959945.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54967396 + 28561 = 7414^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 54995957 - 2⁶ = 54995893 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 54995899 and 54995908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54995657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27497978 + 27497979.

It is an arithmetic number, because the mean of its divisors is an integer number (27497979).

Almost surely, 2^54995957 is an apocalyptic number.

It is an amenable number.

54995957 is a deficient number, since it is larger than the sum of its proper divisors (1).

54995957 is an equidigital number, since it uses as much as digits as its factorization.

54995957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2551500, while the sum is 53.

The square root of 54995957 is about 7415.9259030818. The cubic root of 54995957 is about 380.2859274619.

The spelling of 54995957 in words is "fifty-four million, nine hundred ninety-five thousand, nine hundred fifty-seven".