54542577524509 has 2 divisors, whose sum is σ = 54542577524510. Its totient is φ = 54542577524508.

The previous prime is 54542577524489. The next prime is 54542577524593. The reversal of 54542577524509 is 90542577524545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45516476628100 + 9026100896409 = 6746590^2 + 3004347^2 .

It is a cyclic number.

It is not a de Polignac number, because 54542577524509 - 2²¹ = 54542575427357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54542577525509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27271288762254 + 27271288762255.

It is an arithmetic number, because the mean of its divisors is an integer number (27271288762255).

Almost surely, 2^{54542577524509} is an apocalyptic number.

It is an amenable number.

54542577524509 is a deficient number, since it is larger than the sum of its proper divisors (1).

54542577524509 is an equidigital number, since it uses as much as digits as its factorization.

54542577524509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800000, while the sum is 64.

The spelling of 54542577524509 in words is "fifty-four trillion, five hundred forty-two billion, five hundred seventy-seven million, five hundred twenty-four thousand, five hundred nine".