55747462117 has 2 divisors, whose sum is σ = 55747462118. Its totient is φ = 55747462116.

The previous prime is 55747462103. The next prime is 55747462129. The reversal of 55747462117 is 71126474755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52810797636 + 2936664481 = 229806^2 + 54191^2 .

It is a cyclic number.

It is not a de Polignac number, because 55747462117 - 2⁷ = 55747461989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55747462717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27873731058 + 27873731059.

It is an arithmetic number, because the mean of its divisors is an integer number (27873731059).

Almost surely, 2^55747462117 is an apocalyptic number.

It is an amenable number.

55747462117 is a deficient number, since it is larger than the sum of its proper divisors (1).

55747462117 is an equidigital number, since it uses as much as digits as its factorization.

55747462117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1646400, while the sum is 49.

The spelling of 55747462117 in words is "fifty-five billion, seven hundred forty-seven million, four hundred sixty-two thousand, one hundred seventeen".