1425384505 has 4 divisors (see below), whose sum is σ = 1710461412. Its totient is φ = 1140307600.

The previous prime is 1425384479. The next prime is 1425384523. The reversal of 1425384505 is 5054835241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1063281664 + 362102841 = 32608^2 + 19029^2 .

It is not a de Polignac number, because 1425384505 - 2¹³ = 1425376313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142538446 + ... + 142538455.

It is an arithmetic number, because the mean of its divisors is an integer number (427615353).

Almost surely, 2^1425384505 is an apocalyptic number.

It is an amenable number.

1425384505 is a deficient number, since it is larger than the sum of its proper divisors (285076907).

1425384505 is an equidigital number, since it uses as much as digits as its factorization.

1425384505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285076906.

The product of its (nonzero) digits is 96000, while the sum is 37.

The square root of 1425384505 is about 37754.2647259882. The cubic root of 1425384505 is about 1125.4097615153.

The spelling of 1425384505 in words is "one billion, four hundred twenty-five million, three hundred eighty-four thousand, five hundred five".