425320530 has 64 divisors (see below), whose sum is σ = 1040802048. Its totient is φ = 111211520.

The previous prime is 425320499. The next prime is 425320543. The reversal of 425320530 is 35023524.

It is a self number, because there is not a number n which added to its sum of digits gives 425320530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495862 + ... + 496718.

It is an arithmetic number, because the mean of its divisors is an integer number (16262532).

Almost surely, 2^425320530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425320530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520401024).

425320530 is an abundant number, since it is smaller than the sum of its proper divisors (615481518).

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

425320530 is a wasteful number, since it uses less digits than its factorization.

425320530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 425320530 is about 20623.3006572663. The cubic root of 425320530 is about 752.0362620680.

The spelling of 425320530 in words is "four hundred twenty-five million, three hundred twenty thousand, five hundred thirty".