52511506421321 has 16 divisors (see below), whose sum is σ = 55725510825600. Its totient is φ = 49343522976000.

The previous prime is 52511506421279. The next prime is 52511506421369. The reversal of 52511506421321 is 12312460511525.

It is a cyclic number.

It is not a de Polignac number, because 52511506421321 - 2²⁶ = 52511439312457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52511506721321) 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, 11948576 + ... + 15741393.

It is an arithmetic number, because the mean of its divisors is an integer number (3482844426600).

Almost surely, 2^{52511506421321} is an apocalyptic number.

It is an amenable number.

52511506421321 is a deficient number, since it is larger than the sum of its proper divisors (3214004404279).

52511506421321 is a wasteful number, since it uses less digits than its factorization.

52511506421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27690800.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 52511506421321 its reverse (12312460511525), we get a palindrome (64823966932846).

The spelling of 52511506421321 in words is "fifty-two trillion, five hundred eleven billion, five hundred six million, four hundred twenty-one thousand, three hundred twenty-one".