53515432544513 has 2 divisors, whose sum is σ = 53515432544514. Its totient is φ = 53515432544512.

The previous prime is 53515432544443. The next prime is 53515432544543. The reversal of 53515432544513 is 31544523451535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42925139785984 + 10590292758529 = 6551728^2 + 3254273^2 .

It is a cyclic number.

It is not a de Polignac number, because 53515432544513 - 2⁴² = 49117386033409 is a prime.

It is a super-2 number, since 2×53515432544513² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53515432544543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26757716272256 + 26757716272257.

It is an arithmetic number, because the mean of its divisors is an integer number (26757716272257).

Almost surely, 2^{53515432544513} is an apocalyptic number.

It is an amenable number.

53515432544513 is a deficient number, since it is larger than the sum of its proper divisors (1).

53515432544513 is an equidigital number, since it uses as much as digits as its factorization.

53515432544513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800000, while the sum is 50.

The spelling of 53515432544513 in words is "fifty-three trillion, five hundred fifteen billion, four hundred thirty-two million, five hundred forty-four thousand, five hundred thirteen".