53322018521 has 4 divisors (see below), whose sum is σ = 53324611344. Its totient is φ = 53319425700.

The previous prime is 53322018509. The next prime is 53322018523. The reversal of 53322018521 is 12581022335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53322018521 - 2¹⁸ = 53321756377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53322018523) 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, 1265315 + ... + 1306776.

It is an arithmetic number, because the mean of its divisors is an integer number (13331152836).

Almost surely, 2^53322018521 is an apocalyptic number.

It is an amenable number.

53322018521 is a deficient number, since it is larger than the sum of its proper divisors (2592823).

53322018521 is a wasteful number, since it uses less digits than its factorization.

53322018521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592822.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 53322018521 in words is "fifty-three billion, three hundred twenty-two million, eighteen thousand, five hundred twenty-one".