325513020 has 192 divisors, whose sum is σ = 1123024896. Its totient is φ = 68808960.

The previous prime is 325513007. The next prime is 325513033. The reversal of 325513020 is 20315523.

It is an interprime number because it is at equal distance from previous prime (325513007) and next prime (325513033).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 298917 + ... + 300003.

It is an arithmetic number, because the mean of its divisors is an integer number (5849088).

Almost surely, 2^325513020 is an apocalyptic number.

325513020 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 325513020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561512448).

325513020 is an abundant number, since it is smaller than the sum of its proper divisors (797511876).

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

325513020 is a wasteful number, since it uses less digits than its factorization.

325513020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 325513020 is about 18041.9793814315. The cubic root of 325513020 is about 687.8960063433.

Adding to 325513020 its reverse (20315523), we get a palindrome (345828543).

It can be divided in two parts, 3255 and 13020, that multiplied together give a square (42380100 = 6510²).

The spelling of 325513020 in words is "three hundred twenty-five million, five hundred thirteen thousand, twenty".