425092561 has 2 divisors, whose sum is σ = 425092562. Its totient is φ = 425092560.

The previous prime is 425092543. The next prime is 425092571. The reversal of 425092561 is 165290524.

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., 278222400 + 146870161 = 16680^2 + 12119^2 .

It is a cyclic number.

It is not a de Polignac number, because 425092561 - 2¹⁵ = 425059793 is a prime.

It is not a weakly prime, because it can be changed into another prime (425092501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212546280 + 212546281.

It is an arithmetic number, because the mean of its divisors is an integer number (212546281).

Almost surely, 2^425092561 is an apocalyptic number.

It is an amenable number.

425092561 is a deficient number, since it is larger than the sum of its proper divisors (1).

425092561 is an equidigital number, since it uses as much as digits as its factorization.

425092561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 425092561 is about 20617.7729398691. The cubic root of 425092561 is about 751.9018758956.

The spelling of 425092561 in words is "four hundred twenty-five million, ninety-two thousand, five hundred sixty-one".