53036561 has 2 divisors, whose sum is σ = 53036562. Its totient is φ = 53036560.

The previous prime is 53036527. The next prime is 53036579. The reversal of 53036561 is 16563035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26832400 + 26204161 = 5180^2 + 5119^2 .

It is a cyclic number.

It is not a de Polignac number, because 53036561 - 2¹⁸ = 52774417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53036591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26518280 + 26518281.

It is an arithmetic number, because the mean of its divisors is an integer number (26518281).

Almost surely, 2^53036561 is an apocalyptic number.

It is an amenable number.

53036561 is a deficient number, since it is larger than the sum of its proper divisors (1).

53036561 is an equidigital number, since it uses as much as digits as its factorization.

53036561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 53036561 is about 7282.6204761748. The cubic root of 53036561 is about 375.7149288791.

Adding to 53036561 its reverse (16563035), we get a palindrome (69599596).

It can be divided in two parts, 5 and 3036561, that multiplied together give a triangular number (15182805 = T₅₅₁₀).

The spelling of 53036561 in words is "fifty-three million, thirty-six thousand, five hundred sixty-one".