55864355194057 has 2 divisors, whose sum is σ = 55864355194058. Its totient is φ = 55864355194056.

The previous prime is 55864355193973. The next prime is 55864355194073. The reversal of 55864355194057 is 75049155346855.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49701668103481 + 6162687090576 = 7049941^2 + 2482476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55864355194057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55864355193983 and 55864355194001.

It is not a weakly prime, because it can be changed into another prime (55864355194357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27932177597028 + 27932177597029.

It is an arithmetic number, because the mean of its divisors is an integer number (27932177597029).

Almost surely, 2^{55864355194057} is an apocalyptic number.

It is an amenable number.

55864355194057 is a deficient number, since it is larger than the sum of its proper divisors (1).

55864355194057 is an equidigital number, since it uses as much as digits as its factorization.

55864355194057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600000, while the sum is 67.

The spelling of 55864355194057 in words is "fifty-five trillion, eight hundred sixty-four billion, three hundred fifty-five million, one hundred ninety-four thousand, fifty-seven".