541975308891553 has 2 divisors, whose sum is σ = 541975308891554. Its totient is φ = 541975308891552.

The previous prime is 541975308891551. The next prime is 541975308891559. The reversal of 541975308891553 is 355198803579145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523713292957089 + 18262015934464 = 22884783^2 + 4273408^2 .

It is a cyclic number.

It is not a de Polignac number, because 541975308891553 - 2¹ = 541975308891551 is a prime.

Together with 541975308891551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (541975308891551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270987654445776 + 270987654445777.

It is an arithmetic number, because the mean of its divisors is an integer number (270987654445777).

Almost surely, 2^{541975308891553} is an apocalyptic number.

It is an amenable number.

541975308891553 is a deficient number, since it is larger than the sum of its proper divisors (1).

541975308891553 is an equidigital number, since it uses as much as digits as its factorization.

541975308891553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480000, while the sum is 73.

The spelling of 541975308891553 in words is "five hundred forty-one trillion, nine hundred seventy-five billion, three hundred eight million, eight hundred ninety-one thousand, five hundred fifty-three".