425223230520 has 128 divisors (see below), whose sum is σ = 1392515815680. Its totient is φ = 103019520000.

The previous prime is 425223230507. The next prime is 425223230533. The reversal of 425223230520 is 25032322524.

It is an interprime number because it is at equal distance from previous prime (425223230507) and next prime (425223230533).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 2012715 + ... + 2213925.

It is an arithmetic number, because the mean of its divisors is an integer number (10879029810).

Almost surely, 2^425223230520 is an apocalyptic number.

425223230520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425223230520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696257907840).

425223230520 is an abundant number, since it is smaller than the sum of its proper divisors (967292585160).

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

425223230520 is a wasteful number, since it uses less digits than its factorization.

425223230520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202837 (or 202833 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The spelling of 425223230520 in words is "four hundred twenty-five billion, two hundred twenty-three million, two hundred thirty thousand, five hundred twenty".