513553152157 has 2 divisors, whose sum is σ = 513553152158. Its totient is φ = 513553152156.

The previous prime is 513553152127. The next prime is 513553152163. The reversal of 513553152157 is 751251355315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509130769156 + 4422383001 = 713534^2 + 66501^2 .

It is a cyclic number.

It is not a de Polignac number, because 513553152157 - 2⁷ = 513553152029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513553152127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256776576078 + 256776576079.

It is an arithmetic number, because the mean of its divisors is an integer number (256776576079).

Almost surely, 2^513553152157 is an apocalyptic number.

It is an amenable number.

513553152157 is a deficient number, since it is larger than the sum of its proper divisors (1).

513553152157 is an equidigital number, since it uses as much as digits as its factorization.

513553152157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 393750, while the sum is 43.

The spelling of 513553152157 in words is "five hundred thirteen billion, five hundred fifty-three million, one hundred fifty-two thousand, one hundred fifty-seven".