325231555320 has 1536 divisors, whose sum is σ = 1436071680000. Its totient is φ = 64851591168.

The previous prime is 325231555249. The next prime is 325231555343. The reversal of 325231555320 is 23555132523.

325231555320 is a `hidden beast` number, since 3 + 2 + 52 + 31 + 5 + 553 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 905937301 + ... + 905937659.

It is an arithmetic number, because the mean of its divisors is an integer number (934942500).

Almost surely, 2^325231555320 is an apocalyptic number.

325231555320 is a gapful number since it is divisible by the number (30) 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 325231555320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718035840000).

325231555320 is an abundant number, since it is smaller than the sum of its proper divisors (1110840124680).

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

325231555320 is a wasteful number, since it uses less digits than its factorization.

325231555320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 325231555320 its reverse (23555132523), we get a palindrome (348786687843).

The spelling of 325231555320 in words is "three hundred twenty-five billion, two hundred thirty-one million, five hundred fifty-five thousand, three hundred twenty".