53202261 has 32 divisors (see below), whose sum is σ = 87183360. Its totient is φ = 28178496.

The previous prime is 53202257. The next prime is 53202287. The reversal of 53202261 is 16220235.

It is not a de Polignac number, because 53202261 - 2² = 53202257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53202241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17335 + ... + 20171.

It is an arithmetic number, because the mean of its divisors is an integer number (2724480).

Almost surely, 2^53202261 is an apocalyptic number.

It is an amenable number.

53202261 is a deficient number, since it is larger than the sum of its proper divisors (33981099).

53202261 is a wasteful number, since it uses less digits than its factorization.

53202261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 53202261 is about 7293.9880038289. The cubic root of 53202261 is about 376.1057991281.

Adding to 53202261 its reverse (16220235), we get a palindrome (69422496).

The spelling of 53202261 in words is "fifty-three million, two hundred two thousand, two hundred sixty-one".