54576057528721 has 27 divisors (see below), whose sum is σ = 57789161195259. Its totient is φ = 51534088923312.

The previous prime is 54576057528697. The next prime is 54576057528781. The reversal of 54576057528721 is 12782575067545.

The square root of 54576057528721 is 7387561.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3473060868225 + 51102996660496 = 1863615^2 + 7148636^2 .

It is not a de Polignac number, because 54576057528721 - 2⁷ = 54576057528593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54576057528781) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 70602920091 + ... + 70602920863.

Almost surely, 2^{54576057528721} is an apocalyptic number.

54576057528721 is the 7387561-st square number.

54576057528721 is the 3693781-st centered octagonal number.

It is an amenable number.

54576057528721 is a deficient number, since it is larger than the sum of its proper divisors (3213103666538).

54576057528721 is an frugal number, since it uses more digits than its factorization.

54576057528721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 164640000, while the sum is 64.

The spelling of 54576057528721 in words is "fifty-four trillion, five hundred seventy-six billion, fifty-seven million, five hundred twenty-eight thousand, seven hundred twenty-one".