53130761 has 2 divisors, whose sum is σ = 53130762. Its totient is φ = 53130760.

The previous prime is 53130733. The next prime is 53130767. The reversal of 53130761 is 16703135.

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., 53071225 + 59536 = 7285^2 + 244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53130761 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53130761.

It is not a weakly prime, because it can be changed into another prime (53130767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26565380 + 26565381.

It is an arithmetic number, because the mean of its divisors is an integer number (26565381).

Almost surely, 2^53130761 is an apocalyptic number.

It is an amenable number.

53130761 is a deficient number, since it is larger than the sum of its proper divisors (1).

53130761 is an equidigital number, since it uses as much as digits as its factorization.

53130761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 53130761 is about 7289.0850591827. The cubic root of 53130761 is about 375.9372372418.

Adding to 53130761 its reverse (16703135), we get a palindrome (69833896).

The spelling of 53130761 in words is "fifty-three million, one hundred thirty thousand, seven hundred sixty-one".