425225025 has 24 divisors (see below), whose sum is σ = 781155360. Its totient is φ = 226786320.

The previous prime is 425224973. The next prime is 425225033. The reversal of 425225025 is 520522524.

It is a de Polignac number, because none of the positive numbers 2^k-425225025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 425225025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314307 + ... + 315656.

It is an arithmetic number, because the mean of its divisors is an integer number (32548140).

Almost surely, 2^425225025 is an apocalyptic number.

425225025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425225025 is a deficient number, since it is larger than the sum of its proper divisors (355930335).

425225025 is a wasteful number, since it uses less digits than its factorization.

425225025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629982 (or 629971 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 425225025 is about 20620.9850637645. The cubic root of 425225025 is about 751.9799683673.

Adding to 425225025 its reverse (520522524), we get a palindrome (945747549).

The spelling of 425225025 in words is "four hundred twenty-five million, two hundred twenty-five thousand, twenty-five".