325020353520 has 80 divisors (see below), whose sum is σ = 1010264615712. Its totient is φ = 86439705600.

The previous prime is 325020353507. The next prime is 325020353561. The reversal of 325020353520 is 25353020523.

It is a tau number, because it is divible by the number of its divisors (80).

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1725831 + ... + 1904870.

Almost surely, 2^325020353520 is an apocalyptic number.

325020353520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

325020353520 is an abundant number, since it is smaller than the sum of its proper divisors (685244262192).

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

325020353520 is a wasteful number, since it uses less digits than its factorization.

325020353520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631090 (or 3631084 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 30.

The spelling of 325020353520 in words is "three hundred twenty-five billion, twenty million, three hundred fifty-three thousand, five hundred twenty".