53126861 has 2 divisors, whose sum is σ = 53126862. Its totient is φ = 53126860.

The previous prime is 53126833. The next prime is 53126867. The reversal of 53126861 is 16862135.

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., 51984100 + 1142761 = 7210^2 + 1069^2 .

It is a cyclic number.

It is not a de Polignac number, because 53126861 - 2¹⁸ = 52864717 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53126867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26563430 + 26563431.

It is an arithmetic number, because the mean of its divisors is an integer number (26563431).

Almost surely, 2^53126861 is an apocalyptic number.

It is an amenable number.

53126861 is a deficient number, since it is larger than the sum of its proper divisors (1).

53126861 is an equidigital number, since it uses as much as digits as its factorization.

53126861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 53126861 is about 7288.8175309854. The cubic root of 53126861 is about 375.9280386088.

Adding to 53126861 its reverse (16862135), we get a palindrome (69988996).

The spelling of 53126861 in words is "fifty-three million, one hundred twenty-six thousand, eight hundred sixty-one".