5555557775731 has 2 divisors, whose sum is σ = 5555557775732. Its totient is φ = 5555557775730.

The previous prime is 5555557775701. The next prime is 5555557775777. The reversal of 5555557775731 is 1375777555555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5555557775731 - 2⁹ = 5555557775219 is a prime.

It is a super-2 number, since 2×5555557775731² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5555557775701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2777778887865 + 2777778887866.

It is an arithmetic number, because the mean of its divisors is an integer number (2777778887866).

Almost surely, 2^{5555557775731} is an apocalyptic number.

5555557775731 is a deficient number, since it is larger than the sum of its proper divisors (1).

5555557775731 is an equidigital number, since it uses as much as digits as its factorization.

5555557775731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 562734375, while the sum is 67.

The spelling of 5555557775731 in words is "five trillion, five hundred fifty-five billion, five hundred fifty-seven million, seven hundred seventy-five thousand, seven hundred thirty-one".