52511097409 has 3 divisors (see below), whose sum is σ = 52511326563. Its totient is φ = 52510868256.

The previous prime is 52511097389. The next prime is 52511097451. The reversal of 52511097409 is 90479011525.

The square root of 52511097409 is 229153.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 10433601025 + 42077496384 = 102145^2 + 205128^2 .

It is not a de Polignac number, because 52511097409 - 2¹¹ = 52511095361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52511097109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 114577 + ... + 343729.

It is an arithmetic number, because the mean of its divisors is an integer number (17503775521).

Almost surely, 2^52511097409 is an apocalyptic number.

52511097409 is the 229153-rd square number.

52511097409 is the 114577-th centered octagonal number.

It is an amenable number.

52511097409 is a deficient number, since it is larger than the sum of its proper divisors (229154).

52511097409 is an frugal number, since it uses more digits than its factorization.

52511097409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458306 (or 229153 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 52511097409 in words is "fifty-two billion, five hundred eleven million, ninety-seven thousand, four hundred nine".