55393851157 has 2 divisors, whose sum is σ = 55393851158. Its totient is φ = 55393851156.

The previous prime is 55393851109. The next prime is 55393851193. The reversal of 55393851157 is 75115839355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44695879396 + 10697971761 = 211414^2 + 103431^2 .

It is a cyclic number.

It is not a de Polignac number, because 55393851157 - 2¹⁹ = 55393326869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55393854157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27696925578 + 27696925579.

It is an arithmetic number, because the mean of its divisors is an integer number (27696925579).

Almost surely, 2^55393851157 is an apocalyptic number.

It is an amenable number.

55393851157 is a deficient number, since it is larger than the sum of its proper divisors (1).

55393851157 is an equidigital number, since it uses as much as digits as its factorization.

55393851157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2835000, while the sum is 52.

The spelling of 55393851157 in words is "fifty-five billion, three hundred ninety-three million, eight hundred fifty-one thousand, one hundred fifty-seven".