52135949 has 4 divisors (see below), whose sum is σ = 52236540. Its totient is φ = 52035360.

The previous prime is 52135927. The next prime is 52136011. The reversal of 52135949 is 94953125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30327049 + 21808900 = 5507^2 + 4670^2 .

It is a cyclic number.

It is not a de Polignac number, because 52135949 - 2⁸ = 52135693 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 (52131949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49514 + ... + 50555.

It is an arithmetic number, because the mean of its divisors is an integer number (13059135).

Almost surely, 2^52135949 is an apocalyptic number.

It is an amenable number.

52135949 is a deficient number, since it is larger than the sum of its proper divisors (100591).

52135949 is a wasteful number, since it uses less digits than its factorization.

52135949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100590.

The product of its digits is 48600, while the sum is 38.

The square root of 52135949 is about 7220.5227650081. The cubic root of 52135949 is about 373.5761090089.

The spelling of 52135949 in words is "fifty-two million, one hundred thirty-five thousand, nine hundred forty-nine".