425495540 has 72 divisors (see below), whose sum is σ = 949522392. Its totient is φ = 160061440.

The previous prime is 425495537. The next prime is 425495563. The reversal of 425495540 is 45594524.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 312158224 + 113337316 = 17668^2 + 10646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 425495494 and 425495503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 689312 + ... + 689928.

It is an arithmetic number, because the mean of its divisors is an integer number (13187811).

Almost surely, 2^425495540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425495540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474761196).

425495540 is an abundant number, since it is smaller than the sum of its proper divisors (524026852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425495540 is a wasteful number, since it uses less digits than its factorization.

425495540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 425495540 is about 20627.5432371381. The cubic root of 425495540 is about 752.1393966915.

The spelling of 425495540 in words is "four hundred twenty-five million, four hundred ninety-five thousand, five hundred forty".