52981139507 has 2 divisors, whose sum is σ = 52981139508. Its totient is φ = 52981139506.

The previous prime is 52981139479. The next prime is 52981139569. The reversal of 52981139507 is 70593118925.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52981139507 - 2⁶ = 52981139443 is a prime.

It is a super-2 number, since 2×52981139507² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52981139707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26490569753 + 26490569754.

It is an arithmetic number, because the mean of its divisors is an integer number (26490569754).

Almost surely, 2^52981139507 is an apocalyptic number.

52981139507 is a deficient number, since it is larger than the sum of its proper divisors (1).

52981139507 is an equidigital number, since it uses as much as digits as its factorization.

52981139507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 52981139507 in words is "fifty-two billion, nine hundred eighty-one million, one hundred thirty-nine thousand, five hundred seven".