53305021523 has 8 divisors (see below), whose sum is σ = 57422605968. Its totient is φ = 49189893984.

The previous prime is 53305021507. The next prime is 53305021529. The reversal of 53305021523 is 32512050335.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53305021523 - 2⁴ = 53305021507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53305021529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569036 + ... + 656057.

It is an arithmetic number, because the mean of its divisors is an integer number (7177825746).

Almost surely, 2^53305021523 is an apocalyptic number.

53305021523 is a deficient number, since it is larger than the sum of its proper divisors (4117584445).

53305021523 is a wasteful number, since it uses less digits than its factorization.

53305021523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228453.

The product of its (nonzero) digits is 13500, while the sum is 29.

Adding to 53305021523 its reverse (32512050335), we get a palindrome (85817071858).

The spelling of 53305021523 in words is "fifty-three billion, three hundred five million, twenty-one thousand, five hundred twenty-three".