425781253 has 2 divisors, whose sum is σ = 425781254. Its totient is φ = 425781252.

The previous prime is 425781157. The next prime is 425781283. The reversal of 425781253 is 352187524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345104929 + 80676324 = 18577^2 + 8982^2 .

It is a cyclic number.

It is not a de Polignac number, because 425781253 - 2⁹ = 425780741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425781283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212890626 + 212890627.

It is an arithmetic number, because the mean of its divisors is an integer number (212890627).

Almost surely, 2^425781253 is an apocalyptic number.

It is an amenable number.

425781253 is a deficient number, since it is larger than the sum of its proper divisors (1).

425781253 is an equidigital number, since it uses as much as digits as its factorization.

425781253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 37.

The square root of 425781253 is about 20634.4675967179. The cubic root of 425781253 is about 752.3077086177.

The spelling of 425781253 in words is "four hundred twenty-five million, seven hundred eighty-one thousand, two hundred fifty-three".