55115350231 has 2 divisors, whose sum is σ = 55115350232. Its totient is φ = 55115350230.

The previous prime is 55115350211. The next prime is 55115350247. The reversal of 55115350231 is 13205351155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55115350231 is a prime.

It is a super-2 number, since 2×55115350231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55115350193 and 55115350202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55115350201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27557675115 + 27557675116.

It is an arithmetic number, because the mean of its divisors is an integer number (27557675116).

Almost surely, 2^55115350231 is an apocalyptic number.

55115350231 is a deficient number, since it is larger than the sum of its proper divisors (1).

55115350231 is an equidigital number, since it uses as much as digits as its factorization.

55115350231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 55115350231 in words is "fifty-five billion, one hundred fifteen million, three hundred fifty thousand, two hundred thirty-one".