54510023521 has 2 divisors, whose sum is σ = 54510023522. Its totient is φ = 54510023520.

The previous prime is 54510023501. The next prime is 54510023527. The reversal of 54510023521 is 12532001545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54426557025 + 83466496 = 233295^2 + 9136^2 .

It is a cyclic number.

It is not a de Polignac number, because 54510023521 - 2⁵ = 54510023489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54510023521.

It is not a weakly prime, because it can be changed into another prime (54510023527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27255011760 + 27255011761.

It is an arithmetic number, because the mean of its divisors is an integer number (27255011761).

Almost surely, 2^54510023521 is an apocalyptic number.

It is an amenable number.

54510023521 is a deficient number, since it is larger than the sum of its proper divisors (1).

54510023521 is an equidigital number, since it uses as much as digits as its factorization.

54510023521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 54510023521 in words is "fifty-four billion, five hundred ten million, twenty-three thousand, five hundred twenty-one".