54625663426657 has 2 divisors, whose sum is σ = 54625663426658. Its totient is φ = 54625663426656.

The previous prime is 54625663426627. The next prime is 54625663426661. The reversal of 54625663426657 is 75662436652645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42081571194961 + 12544092231696 = 6487031^2 + 3541764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54625663426657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54625663426592 and 54625663426601.

It is not a weakly prime, because it can be changed into another prime (54625663426627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27312831713328 + 27312831713329.

It is an arithmetic number, because the mean of its divisors is an integer number (27312831713329).

Almost surely, 2^{54625663426657} is an apocalyptic number.

It is an amenable number.

54625663426657 is a deficient number, since it is larger than the sum of its proper divisors (1).

54625663426657 is an equidigital number, since it uses as much as digits as its factorization.

54625663426657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368000, while the sum is 67.

The spelling of 54625663426657 in words is "fifty-four trillion, six hundred twenty-five billion, six hundred sixty-three million, four hundred twenty-six thousand, six hundred fifty-seven".