425120025 has 48 divisors (see below), whose sum is σ = 778307328. Its totient is φ = 203016000.

The previous prime is 425120023. The next prime is 425120083. The reversal of 425120025 is 520021524.

It is a happy number.

It is not a de Polignac number, because 425120025 - 2¹ = 425120023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 425119983 and 425120010.

It is not an unprimeable number, because it can be changed into a prime (425120023) 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, 51430 + ... + 59120.

It is an arithmetic number, because the mean of its divisors is an integer number (16214736).

Almost surely, 2^425120025 is an apocalyptic number.

It is an amenable number.

425120025 is a deficient number, since it is larger than the sum of its proper divisors (353187303).

425120025 is a wasteful number, since it uses less digits than its factorization.

425120025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7782 (or 7777 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 425120025 is about 20618.4389564293. The cubic root of 425120025 is about 751.9180682815.

Adding to 425120025 its reverse (520021524), we get a palindrome (945141549).

The spelling of 425120025 in words is "four hundred twenty-five million, one hundred twenty thousand, twenty-five".