53148230521 has 3 divisors (see below), whose sum is σ = 53148461061. Its totient is φ = 53147999982.

The previous prime is 53148230497. The next prime is 53148230533. The reversal of 53148230521 is 12503284135.

The square root of 53148230521 is 230539.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12503284135 = 5 ⋅2500656827.

It is not a de Polignac number, because 53148230521 - 2⁵ = 53148230489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53148230621) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 115270 + ... + 345808.

It is an arithmetic number, because the mean of its divisors is an integer number (17716153687).

Almost surely, 2^53148230521 is an apocalyptic number.

53148230521 is the 230539-th square number.

53148230521 is the 115270-th centered octagonal number.

It is an amenable number.

53148230521 is a deficient number, since it is larger than the sum of its proper divisors (230540).

53148230521 is an frugal number, since it uses more digits than its factorization.

53148230521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461078 (or 230539 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 53148230521 in words is "fifty-three billion, one hundred forty-eight million, two hundred thirty thousand, five hundred twenty-one".