54521460355521 has 24 divisors (see below), whose sum is σ = 76000314793536. Its totient is φ = 34764128507680.

The previous prime is 54521460355519. The next prime is 54521460355559. The reversal of 54521460355521 is 12555306412545.

It is not a de Polignac number, because 54521460355521 - 2¹ = 54521460355519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54521460355511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15848716 + ... + 18979586.

It is an arithmetic number, because the mean of its divisors is an integer number (3166679783064).

Almost surely, 2^{54521460355521} is an apocalyptic number.

It is an amenable number.

54521460355521 is a deficient number, since it is larger than the sum of its proper divisors (21478854438015).

54521460355521 is a wasteful number, since it uses less digits than its factorization.

54521460355521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141893 (or 3141870 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 48.

The spelling of 54521460355521 in words is "fifty-four trillion, five hundred twenty-one billion, four hundred sixty million, three hundred fifty-five thousand, five hundred twenty-one".