53820761 has 2 divisors, whose sum is σ = 53820762. Its totient is φ = 53820760.

The previous prime is 53820757. The next prime is 53820763. The reversal of 53820761 is 16702835.

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., 32844361 + 20976400 = 5731^2 + 4580^2 .

It is a cyclic number.

It is not a de Polignac number, because 53820761 - 2² = 53820757 is a prime.

Together with 53820763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53820763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26910380 + 26910381.

It is an arithmetic number, because the mean of its divisors is an integer number (26910381).

Almost surely, 2^53820761 is an apocalyptic number.

It is an amenable number.

53820761 is a deficient number, since it is larger than the sum of its proper divisors (1).

53820761 is an equidigital number, since it uses as much as digits as its factorization.

53820761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 53820761 is about 7336.2634222062. The cubic root of 53820761 is about 377.5576532854.

The spelling of 53820761 in words is "fifty-three million, eight hundred twenty thousand, seven hundred sixty-one".