55055523351461 has 2 divisors, whose sum is σ = 55055523351462. Its totient is φ = 55055523351460.

The previous prime is 55055523351457. The next prime is 55055523351463. The reversal of 55055523351461 is 16415332555055.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54265042323361 + 790481028100 = 7366481^2 + 889090^2 .

It is a cyclic number.

It is not a de Polignac number, because 55055523351461 - 2² = 55055523351457 is a prime.

It is a super-2 number, since 2×55055523351461² (a number of 28 digits) contains 22 as substring.

Together with 55055523351463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55055523351463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527761675730 + 27527761675731.

It is an arithmetic number, because the mean of its divisors is an integer number (27527761675731).

Almost surely, 2^{55055523351461} is an apocalyptic number.

It is an amenable number.

55055523351461 is a deficient number, since it is larger than the sum of its proper divisors (1).

55055523351461 is an equidigital number, since it uses as much as digits as its factorization.

55055523351461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750000, while the sum is 50.

The spelling of 55055523351461 in words is "fifty-five trillion, fifty-five billion, five hundred twenty-three million, three hundred fifty-one thousand, four hundred sixty-one".