5201541501557 has 2 divisors, whose sum is σ = 5201541501558. Its totient is φ = 5201541501556.

The previous prime is 5201541501503. The next prime is 5201541501593. The reversal of 5201541501557 is 7551051451025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5190623550436 + 10917951121 = 2278294^2 + 104489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5201541501557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5201541201557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600770750778 + 2600770750779.

It is an arithmetic number, because the mean of its divisors is an integer number (2600770750779).

Almost surely, 2^{5201541501557} is an apocalyptic number.

It is an amenable number.

5201541501557 is a deficient number, since it is larger than the sum of its proper divisors (1).

5201541501557 is an equidigital number, since it uses as much as digits as its factorization.

5201541501557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 175000, while the sum is 41.

The spelling of 5201541501557 in words is "five trillion, two hundred one billion, five hundred forty-one million, five hundred one thousand, five hundred fifty-seven".