155541204253 has 2 divisors, whose sum is σ = 155541204254. Its totient is φ = 155541204252.

The previous prime is 155541204241. The next prime is 155541204263. The reversal of 155541204253 is 352402145551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132709389849 + 22831814404 = 364293^2 + 151102^2 .

It is an emirp because it is prime and its reverse (352402145551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155541204253 - 2¹³ = 155541196061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155541204233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77770602126 + 77770602127.

It is an arithmetic number, because the mean of its divisors is an integer number (77770602127).

Almost surely, 2^155541204253 is an apocalyptic number.

It is an amenable number.

155541204253 is a deficient number, since it is larger than the sum of its proper divisors (1).

155541204253 is an equidigital number, since it uses as much as digits as its factorization.

155541204253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 155541204253 in words is "one hundred fifty-five billion, five hundred forty-one million, two hundred four thousand, two hundred fifty-three".