1425603503 has 4 divisors (see below), whose sum is σ = 1487586288. Its totient is φ = 1363620720.

The previous prime is 1425603481. The next prime is 1425603511. The reversal of 1425603503 is 3053065241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425603503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425603523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30991358 + ... + 30991403.

It is an arithmetic number, because the mean of its divisors is an integer number (371896572).

Almost surely, 2^1425603503 is an apocalyptic number.

1425603503 is a deficient number, since it is larger than the sum of its proper divisors (61982785).

1425603503 is an equidigital number, since it uses as much as digits as its factorization.

1425603503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61982784.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1425603503 is about 37757.1649227004. The cubic root of 1425603503 is about 1125.4673950556.

Adding to 1425603503 its reverse (3053065241), we get a palindrome (4478668744).

The spelling of 1425603503 in words is "one billion, four hundred twenty-five million, six hundred three thousand, five hundred three".