45551534111521 has 2 divisors, whose sum is σ = 45551534111522. Its totient is φ = 45551534111520.

The previous prime is 45551534111483. The next prime is 45551534111557. The reversal of 45551534111521 is 12511143515554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45175053695121 + 376480416400 = 6721239^2 + 613580^2 .

It is a cyclic number.

It is not a de Polignac number, because 45551534111521 - 2⁷ = 45551534111393 is a prime.

It is a super-2 number, since 2×45551534111521² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45551534111561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22775767055760 + 22775767055761.

It is an arithmetic number, because the mean of its divisors is an integer number (22775767055761).

Almost surely, 2^{45551534111521} is an apocalyptic number.

It is an amenable number.

45551534111521 is a deficient number, since it is larger than the sum of its proper divisors (1).

45551534111521 is an equidigital number, since it uses as much as digits as its factorization.

45551534111521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 300000, while the sum is 43.

The spelling of 45551534111521 in words is "forty-five trillion, five hundred fifty-one billion, five hundred thirty-four million, one hundred eleven thousand, five hundred twenty-one".