425003351561 has 2 divisors, whose sum is σ = 425003351562. Its totient is φ = 425003351560.

The previous prime is 425003351519. The next prime is 425003351581. The reversal of 425003351561 is 165153300524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399525126400 + 25478225161 = 632080^2 + 159619^2 .

It is a cyclic number.

It is not a de Polignac number, because 425003351561 - 2¹⁰ = 425003350537 is a prime.

It is a super-2 number, since 2×425003351561² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425003351581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212501675780 + 212501675781.

It is an arithmetic number, because the mean of its divisors is an integer number (212501675781).

Almost surely, 2^425003351561 is an apocalyptic number.

It is an amenable number.

425003351561 is a deficient number, since it is larger than the sum of its proper divisors (1).

425003351561 is an equidigital number, since it uses as much as digits as its factorization.

425003351561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 425003351561 in words is "four hundred twenty-five billion, three million, three hundred fifty-one thousand, five hundred sixty-one".