54377993 has 2 divisors, whose sum is σ = 54377994. Its totient is φ = 54377992.

The previous prime is 54377899. The next prime is 54378001. The reversal of 54377993 is 39977345.

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., 40857664 + 13520329 = 6392^2 + 3677^2 .

It is a cyclic number.

It is not a de Polignac number, because 54377993 - 2¹² = 54373897 is a prime.

It is a super-2 number, since 2×54377993² = 5913932245416098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54377093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27188996 + 27188997.

It is an arithmetic number, because the mean of its divisors is an integer number (27188997).

Almost surely, 2^54377993 is an apocalyptic number.

It is an amenable number.

54377993 is a deficient number, since it is larger than the sum of its proper divisors (1).

54377993 is an equidigital number, since it uses as much as digits as its factorization.

54377993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 47.

The square root of 54377993 is about 7374.1435434903. The cubic root of 54377993 is about 378.8561935415.

The spelling of 54377993 in words is "fifty-four million, three hundred seventy-seven thousand, nine hundred ninety-three".