1425665205 has 56 divisors (see below), whose sum is σ = 2598017280. Its totient is φ = 750578400.

The previous prime is 1425665159. The next prime is 1425665257. The reversal of 1425665205 is 5025665241.

1425665205 is a `hidden beast` number, since 1 + 42 + 566 + 52 + 0 + 5 = 666.

It is not a de Polignac number, because 1425665205 - 2⁸ = 1425664949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1425665205.

It is a congruent number.

It is an unprimeable number.

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 in 55 ways as a sum of consecutive naturals, for example, 285480 + ... + 290430.

Almost surely, 2^1425665205 is an apocalyptic number.

1425665205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425665205 is a deficient number, since it is larger than the sum of its proper divisors (1172352075).

1425665205 is an frugal number, since it uses more digits than its factorization.

1425665205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053 (or 5038 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 1425665205 is about 37757.9820038095. The cubic root of 1425665205 is about 1125.4836320591.

Adding to 1425665205 its sum of digits (36), we get a palindrome (1425665241).

The spelling of 1425665205 in words is "one billion, four hundred twenty-five million, six hundred sixty-five thousand, two hundred five".