53261533 has 12 divisors (see below), whose sum is σ = 58204980. Its totient is φ = 48711936.

The previous prime is 53261521. The next prime is 53261539. The reversal of 53261533 is 33516235.

It can be written as a sum of positive squares in 6 ways, for example, as 19598329 + 33663204 = 4427^2 + 5802^2 .

It is not a de Polignac number, because 53261533 - 2¹⁷ = 53130461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53261539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17703 + ... + 20491.

It is an arithmetic number, because the mean of its divisors is an integer number (4850415).

Almost surely, 2^53261533 is an apocalyptic number.

It is an amenable number.

53261533 is a deficient number, since it is larger than the sum of its proper divisors (4943447).

53261533 is a wasteful number, since it uses less digits than its factorization.

53261533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928 (or 2915 counting only the distinct ones).

The product of its digits is 8100, while the sum is 28.

The square root of 53261533 is about 7298.0499450196. The cubic root of 53261533 is about 376.2454189425.

Adding to 53261533 its reverse (33516235), we get a palindrome (86777768).

It can be divided in two parts, 5326 and 1533, that added together give a cube (6859 = 19³).

The spelling of 53261533 in words is "fifty-three million, two hundred sixty-one thousand, five hundred thirty-three".