54197761 has 2 divisors, whose sum is σ = 54197762. Its totient is φ = 54197760.

The previous prime is 54197753. The next prime is 54197789. The reversal of 54197761 is 16779145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54110736 + 87025 = 7356^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 54197761 - 2³ = 54197753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54197701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27098880 + 27098881.

It is an arithmetic number, because the mean of its divisors is an integer number (27098881).

Almost surely, 2^54197761 is an apocalyptic number.

It is an amenable number.

54197761 is a deficient number, since it is larger than the sum of its proper divisors (1).

54197761 is an equidigital number, since it uses as much as digits as its factorization.

54197761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 54197761 is about 7361.9128628367. The cubic root of 54197761 is about 378.4371662626.

The spelling of 54197761 in words is "fifty-four million, one hundred ninety-seven thousand, seven hundred sixty-one".