55918097723 has 2 divisors, whose sum is σ = 55918097724. Its totient is φ = 55918097722.

The previous prime is 55918097713. The next prime is 55918097749. The reversal of 55918097723 is 32779081955.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55918097723 is a prime.

It is not a weakly prime, because it can be changed into another prime (55918097713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27959048861 + 27959048862.

It is an arithmetic number, because the mean of its divisors is an integer number (27959048862).

Almost surely, 2^55918097723 is an apocalyptic number.

55918097723 is a deficient number, since it is larger than the sum of its proper divisors (1).

55918097723 is an equidigital number, since it uses as much as digits as its factorization.

55918097723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4762800, while the sum is 56.

The spelling of 55918097723 in words is "fifty-five billion, nine hundred eighteen million, ninety-seven thousand, seven hundred twenty-three".