425177969 has 2 divisors, whose sum is σ = 425177970. Its totient is φ = 425177968.

The previous prime is 425177959. The next prime is 425177971. The reversal of 425177969 is 969771524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298840369 + 126337600 = 17287^2 + 11240^2 .

It is a cyclic number.

It is not a de Polignac number, because 425177969 - 2¹² = 425173873 is a prime.

It is a super-2 number, since 2×425177969² = 361552610645929922, which contains 22 as substring.

Together with 425177971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425177959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212588984 + 212588985.

It is an arithmetic number, because the mean of its divisors is an integer number (212588985).

Almost surely, 2^425177969 is an apocalyptic number.

It is an amenable number.

425177969 is a deficient number, since it is larger than the sum of its proper divisors (1).

425177969 is an equidigital number, since it uses as much as digits as its factorization.

425177969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 425177969 is about 20619.8440585762. The cubic root of 425177969 is about 751.9522289567.

The spelling of 425177969 in words is "four hundred twenty-five million, one hundred seventy-seven thousand, nine hundred sixty-nine".