425240931025 has 27 divisors (see below), whose sum is σ = 540643341459. Its totient is φ = 331791024000.

The previous prime is 425240931023. The next prime is 425240931047. The reversal of 425240931025 is 520139042524.

The square root of 425240931025 is 652105.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 351574285969 + 73666645056 = 592937^2 + 271416^2 .

It is not a de Polignac number, because 425240931025 - 2¹ = 425240931023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425240931023) 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 26 ways as a sum of consecutive naturals, for example, 133679935 + ... + 133683115.

Almost surely, 2^425240931025 is an apocalyptic number.

425240931025 is the 652105-th square number.

425240931025 is the 326053-rd centered octagonal number.

It is an amenable number.

425240931025 is a deficient number, since it is larger than the sum of its proper divisors (115402410434).

425240931025 is an frugal number, since it uses more digits than its factorization.

425240931025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454 (or 3227 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 425240931025 its reverse (520139042524), we get a palindrome (945379973549).

The spelling of 425240931025 in words is "four hundred twenty-five billion, two hundred forty million, nine hundred thirty-one thousand, twenty-five".