425205025 has 48 divisors (see below), whose sum is σ = 633888000. Its totient is φ = 276629760.

The previous prime is 425205023. The next prime is 425205043. The reversal of 425205025 is 520502524.

It is a happy number.

It is not a de Polignac number, because 425205025 - 2¹ = 425205023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (425205023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 599371 + ... + 600079.

It is an arithmetic number, because the mean of its divisors is an integer number (13206000).

Almost surely, 2^425205025 is an apocalyptic number.

It is an amenable number.

425205025 is a deficient number, since it is larger than the sum of its proper divisors (208682975).

425205025 is a wasteful number, since it uses less digits than its factorization.

425205025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 425205025 is about 20620.5001151766. The cubic root of 425205025 is about 751.9681786605.

Adding to 425205025 its reverse (520502524), we get a palindrome (945707549).

It can be divided in two parts, 42520502 and 5, that multiplied together give a triangular number (212602510 = T₂₀₆₂₀).

The spelling of 425205025 in words is "four hundred twenty-five million, two hundred five thousand, twenty-five".