325400540203521 has 48 divisors (see below), whose sum is σ = 477636120299520. Its totient is φ = 213442023373920.

The previous prime is 325400540203481. The next prime is 325400540203589. The reversal of 325400540203521 is 125302045004523.

325400540203521 is a `hidden beast` number, since 3 + 2 + 5 + 40 + 0 + 540 + 20 + 3 + 52 + 1 = 666.

It is not a de Polignac number, because 325400540203521 - 2¹³ = 325400540195329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (325400540201521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 497465740 + ... + 498119426.

It is an arithmetic number, because the mean of its divisors is an integer number (9950752506240).

Almost surely, 2^{325400540203521} is an apocalyptic number.

It is an amenable number.

325400540203521 is a deficient number, since it is larger than the sum of its proper divisors (152235580095999).

325400540203521 is a wasteful number, since it uses less digits than its factorization.

325400540203521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656506 (or 656503 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 325400540203521 in words is "three hundred twenty-five trillion, four hundred billion, five hundred forty million, two hundred three thousand, five hundred twenty-one".