1425851825 has 6 divisors (see below), whose sum is σ = 1768056294. Its totient is φ = 1140681440.

The previous prime is 1425851821. The next prime is 1425851839. The reversal of 1425851825 is 5281585241.

It can be written as a sum of positive squares in 3 ways, for example, as 506610064 + 919241761 = 22508^2 + 30319^2 .

It is not a de Polignac number, because 1425851825 - 2² = 1425851821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425851821) 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 in 5 ways as a sum of consecutive naturals, for example, 28517012 + ... + 28517061.

It is an arithmetic number, because the mean of its divisors is an integer number (294676049).

Almost surely, 2^1425851825 is an apocalyptic number.

It is an amenable number.

1425851825 is a deficient number, since it is larger than the sum of its proper divisors (342204469).

1425851825 is an equidigital number, since it uses as much as digits as its factorization.

1425851825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57034083 (or 57034078 counting only the distinct ones).

The product of its digits is 128000, while the sum is 41.

The square root of 1425851825 is about 37760.4531884881. The cubic root of 1425851825 is about 1125.5327386307.

The spelling of 1425851825 in words is "one billion, four hundred twenty-five million, eight hundred fifty-one thousand, eight hundred twenty-five".