425005250540 has 96 divisors (see below), whose sum is σ = 967681741824. Its totient is φ = 155862685440.

The previous prime is 425005250539. The next prime is 425005250587. The reversal of 425005250540 is 45052500524.

It is a junction number, because it is equal to n+sod(n) for n = 425005250497 and 425005250506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69772895 + ... + 69778985.

It is an arithmetic number, because the mean of its divisors is an integer number (10080018144).

Almost surely, 2^425005250540 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 425005250540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483840870912).

425005250540 is an abundant number, since it is smaller than the sum of its proper divisors (542676491284).

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

425005250540 is a wasteful number, since it uses less digits than its factorization.

425005250540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887 (or 7885 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The spelling of 425005250540 in words is "four hundred twenty-five billion, five million, two hundred fifty thousand, five hundred forty".