6557112539 has 2 divisors, whose sum is σ = 6557112540. Its totient is φ = 6557112538.

The previous prime is 6557112533. The next prime is 6557112577. The reversal of 6557112539 is 9352117556.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6557112539 is a prime.

It is a super-2 number, since 2×6557112539² = 85991449698222053042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6557112539.

It is not a weakly prime, because it can be changed into another prime (6557112533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278556269 + 3278556270.

It is an arithmetic number, because the mean of its divisors is an integer number (3278556270).

Almost surely, 2^6557112539 is an apocalyptic number.

6557112539 is a deficient number, since it is larger than the sum of its proper divisors (1).

6557112539 is an equidigital number, since it uses as much as digits as its factorization.

6557112539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 44.

The square root of 6557112539 is about 80975.9997715372. Note that the first 3 decimals coincide. The cubic root of 6557112539 is about 1871.7056262828.

The spelling of 6557112539 in words is "six billion, five hundred fifty-seven million, one hundred twelve thousand, five hundred thirty-nine".