1425258405 has 12 divisors (see below), whose sum is σ = 2470447980. Its totient is φ = 760137792.

The previous prime is 1425258397. The next prime is 1425258407. The reversal of 1425258405 is 5048525241.

It can be written as a sum of positive squares in 2 ways, for example, as 639128961 + 786129444 = 25281^2 + 28038^2 .

It is not a de Polignac number, because 1425258405 - 2³ = 1425258397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1425258405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425258407) 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 in 11 ways as a sum of consecutive naturals, for example, 15836160 + ... + 15836249.

It is an arithmetic number, because the mean of its divisors is an integer number (205870665).

Almost surely, 2^1425258405 is an apocalyptic number.

1425258405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425258405 is a deficient number, since it is larger than the sum of its proper divisors (1045189575).

1425258405 is a wasteful number, since it uses less digits than its factorization.

1425258405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31672420 (or 31672417 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 1425258405 is about 37752.5946790416. The cubic root of 1425258405 is about 1125.3765731942.

The spelling of 1425258405 in words is "one billion, four hundred twenty-five million, two hundred fifty-eight thousand, four hundred five".