52135757 has 4 divisors (see below), whose sum is σ = 52229916. Its totient is φ = 52041600.

The previous prime is 52135747. The next prime is 52135777. The reversal of 52135757 is 75753125.

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 29800681 + 22335076 = 5459^2 + 4726^2 .

It is a cyclic number.

It is not a de Polignac number, because 52135757 - 2⁶ = 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 (52135717) 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, 46244 + ... + 47357.

It is an arithmetic number, because the mean of its divisors is an integer number (13057479).

Almost surely, 2^52135757 is an apocalyptic number.

It is an amenable number.

52135757 is a deficient number, since it is larger than the sum of its proper divisors (94159).

52135757 is an equidigital number, since it uses as much as digits as its factorization.

52135757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94158.

The product of its digits is 36750, while the sum is 35.

The square root of 52135757 is about 7220.5094695596. The cubic root of 52135757 is about 373.5756504213.

The spelling of 52135757 in words is "fifty-two million, one hundred thirty-five thousand, seven hundred fifty-seven".