55259857157 has 2 divisors, whose sum is σ = 55259857158. Its totient is φ = 55259857156.

The previous prime is 55259857139. The next prime is 55259857183. The reversal of 55259857157 is 75175895255.

55259857157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54868846081 + 391011076 = 234241^2 + 19774^2 .

It is a cyclic number.

It is not a de Polignac number, because 55259857157 - 2¹⁰ = 55259856133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55259857096 and 55259857105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55259857057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27629928578 + 27629928579.

It is an arithmetic number, because the mean of its divisors is an integer number (27629928579).

Almost surely, 2^55259857157 is an apocalyptic number.

It is an amenable number.

55259857157 is a deficient number, since it is larger than the sum of its proper divisors (1).

55259857157 is an equidigital number, since it uses as much as digits as its factorization.

55259857157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22050000, while the sum is 59.

The spelling of 55259857157 in words is "fifty-five billion, two hundred fifty-nine million, eight hundred fifty-seven thousand, one hundred fifty-seven".