1552727473261 has 2 divisors, whose sum is σ = 1552727473262. Its totient is φ = 1552727473260.

The previous prime is 1552727473159. The next prime is 1552727473313. The reversal of 1552727473261 is 1623747272551.

It is an a-pointer prime, because the next prime (1552727473313) can be obtained adding 1552727473261 to its sum of digits (52).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1551631466025 + 1096007236 = 1245645^2 + 33106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1552727473261 - 2⁹ = 1552727472749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1552727473199 and 1552727473208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552727473361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776363736630 + 776363736631.

It is an arithmetic number, because the mean of its divisors is an integer number (776363736631).

Almost surely, 2^{1552727473261} is an apocalyptic number.

It is an amenable number.

1552727473261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552727473261 is an equidigital number, since it uses as much as digits as its factorization.

1552727473261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4939200, while the sum is 52.

The spelling of 1552727473261 in words is "one trillion, five hundred fifty-two billion, seven hundred twenty-seven million, four hundred seventy-three thousand, two hundred sixty-one".