52981139479 has 2 divisors, whose sum is σ = 52981139480. Its totient is φ = 52981139478.

The previous prime is 52981139461. The next prime is 52981139507. The reversal of 52981139479 is 97493118925.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52981139479 - 2⁹ = 52981138967 is a prime.

It is a super-2 number, since 2×52981139479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52981139429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26490569739 + 26490569740.

It is an arithmetic number, because the mean of its divisors is an integer number (26490569740).

Almost surely, 2^52981139479 is an apocalyptic number.

52981139479 is a deficient number, since it is larger than the sum of its proper divisors (1).

52981139479 is an equidigital number, since it uses as much as digits as its factorization.

52981139479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 58.

The spelling of 52981139479 in words is "fifty-two billion, nine hundred eighty-one million, one hundred thirty-nine thousand, four hundred seventy-nine".