54990797 has 2 divisors, whose sum is σ = 54990798. Its totient is φ = 54990796.

The previous prime is 54990791. The next prime is 54990809. The reversal of 54990797 is 79709945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32844361 + 22146436 = 5731^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 54990797 - 2⁴ = 54990781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54990791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27495398 + 27495399.

It is an arithmetic number, because the mean of its divisors is an integer number (27495399).

Almost surely, 2^54990797 is an apocalyptic number.

It is an amenable number.

54990797 is a deficient number, since it is larger than the sum of its proper divisors (1).

54990797 is an equidigital number, since it uses as much as digits as its factorization.

54990797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 54990797 is about 7415.5779950048. The cubic root of 54990797 is about 380.2740336375.

The spelling of 54990797 in words is "fifty-four million, nine hundred ninety thousand, seven hundred ninety-seven".