53540230521 has 16 divisors (see below), whose sum is σ = 73321133760. Its totient is φ = 34731002880.

The previous prime is 53540230519. The next prime is 53540230531. The reversal of 53540230521 is 12503204535.

It is not a de Polignac number, because 53540230521 - 2¹ = 53540230519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53540230531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527640 + ... + 620873.

It is an arithmetic number, because the mean of its divisors is an integer number (4582570860).

Almost surely, 2^53540230521 is an apocalyptic number.

It is an amenable number.

53540230521 is a deficient number, since it is larger than the sum of its proper divisors (19780903239).

53540230521 is a wasteful number, since it uses less digits than its factorization.

53540230521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148936.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 53540230521 in words is "fifty-three billion, five hundred forty million, two hundred thirty thousand, five hundred twenty-one".