54061515565397 has 2 divisors, whose sum is σ = 54061515565398. Its totient is φ = 54061515565396.

The previous prime is 54061515565381. The next prime is 54061515565417. The reversal of 54061515565397 is 79356551516045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41814833340721 + 12246682224676 = 6466439^2 + 3499526^2 .

It is a cyclic number.

It is not a de Polignac number, because 54061515565397 - 2⁴ = 54061515565381 is a prime.

It is a super-2 number, since 2×54061515565397² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54061515595397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27030757782698 + 27030757782699.

It is an arithmetic number, because the mean of its divisors is an integer number (27030757782699).

Almost surely, 2^{54061515565397} is an apocalyptic number.

It is an amenable number.

54061515565397 is a deficient number, since it is larger than the sum of its proper divisors (1).

54061515565397 is an equidigital number, since it uses as much as digits as its factorization.

54061515565397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85050000, while the sum is 62.

The spelling of 54061515565397 in words is "fifty-four trillion, sixty-one billion, five hundred fifteen million, five hundred sixty-five thousand, three hundred ninety-seven".