1425004425 has 72 divisors (see below), whose sum is σ = 2763744984. Its totient is φ = 697697280.

The previous prime is 1425004417. The next prime is 1425004433. The reversal of 1425004425 is 5244005241.

It is an interprime number because it is at equal distance from previous prime (1425004417) and next prime (1425004433).

It can be written as a sum of positive squares in 12 ways, for example, as 109056249 + 1315948176 = 10443^2 + 36276^2 .

It is not a de Polignac number, because 1425004425 - 2³ = 1425004417 is a prime.

It is a super-2 number, since 2×1425004425² = 4061275222539161250, which contains 22 as substring.

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 71 ways as a sum of consecutive naturals, for example, 574989 + ... + 577461.

It is an arithmetic number, because the mean of its divisors is an integer number (38385347).

Almost surely, 2^1425004425 is an apocalyptic number.

1425004425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1425004425 is a deficient number, since it is larger than the sum of its proper divisors (1338740559).

1425004425 is a wasteful number, since it uses less digits than its factorization.

1425004425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699 (or 2691 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1425004425 is about 37749.2307868650. The cubic root of 1425004425 is about 1125.3097221304.

Adding to 1425004425 its reverse (5244005241), we get a palindrome (6669009666).

The spelling of 1425004425 in words is "one billion, four hundred twenty-five million, four thousand, four hundred twenty-five".