47555617242157 has 2 divisors, whose sum is σ = 47555617242158. Its totient is φ = 47555617242156.

The previous prime is 47555617242139. The next prime is 47555617242223. The reversal of 47555617242157 is 75124271655574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34084742709796 + 13470874532361 = 5838214^2 + 3670269^2 .

It is a cyclic number.

It is not a de Polignac number, because 47555617242157 - 2²⁷ = 47555483024429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47555617242095 and 47555617242104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47555617242457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23777808621078 + 23777808621079.

It is an arithmetic number, because the mean of its divisors is an integer number (23777808621079).

Almost surely, 2^{47555617242157} is an apocalyptic number.

It is an amenable number.

47555617242157 is a deficient number, since it is larger than the sum of its proper divisors (1).

47555617242157 is an equidigital number, since it uses as much as digits as its factorization.

47555617242157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82320000, while the sum is 61.

The spelling of 47555617242157 in words is "forty-seven trillion, five hundred fifty-five billion, six hundred seventeen million, two hundred forty-two thousand, one hundred fifty-seven".