54393641 has 2 divisors, whose sum is σ = 54393642. Its totient is φ = 54393640.

The previous prime is 54393631. The next prime is 54393649. The reversal of 54393641 is 14639345.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32444416 + 21949225 = 5696^2 + 4685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54393641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54393649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27196820 + 27196821.

It is an arithmetic number, because the mean of its divisors is an integer number (27196821).

Almost surely, 2^54393641 is an apocalyptic number.

It is an amenable number.

54393641 is a deficient number, since it is larger than the sum of its proper divisors (1).

54393641 is an equidigital number, since it uses as much as digits as its factorization.

54393641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 54393641 is about 7375.2044717418. The cubic root of 54393641 is about 378.8925303806.

The spelling of 54393641 in words is "fifty-four million, three hundred ninety-three thousand, six hundred forty-one".