52361261 has 4 divisors (see below), whose sum is σ = 53248800. Its totient is φ = 51473724.

The previous prime is 52361251. The next prime is 52361273. The reversal of 52361261 is 16216325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-52361261 is a prime.

It is a Duffinian number.

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 52361261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52361251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443681 + ... + 443798.

It is an arithmetic number, because the mean of its divisors is an integer number (13312200).

Almost surely, 2^52361261 is an apocalyptic number.

It is an amenable number.

52361261 is a deficient number, since it is larger than the sum of its proper divisors (887539).

52361261 is an equidigital number, since it uses as much as digits as its factorization.

52361261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887538.

The product of its digits is 2160, while the sum is 26.

The square root of 52361261 is about 7236.1081390482. The cubic root of 52361261 is about 374.1134875362.

Adding to 52361261 its reverse (16216325), we get a palindrome (68577586).

The spelling of 52361261 in words is "fifty-two million, three hundred sixty-one thousand, two hundred sixty-one".