521463654053 has 2 divisors, whose sum is σ = 521463654054. Its totient is φ = 521463654052.

The previous prime is 521463654043. The next prime is 521463654203. The reversal of 521463654053 is 350456364125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314695194529 + 206768459524 = 560977^2 + 454718^2 .

It is a cyclic number.

It is not a de Polignac number, because 521463654053 - 2⁶ = 521463653989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 521463653995 and 521463654013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (521463654043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260731827026 + 260731827027.

It is an arithmetic number, because the mean of its divisors is an integer number (260731827027).

Almost surely, 2^521463654053 is an apocalyptic number.

It is an amenable number.

521463654053 is a deficient number, since it is larger than the sum of its proper divisors (1).

521463654053 is an equidigital number, since it uses as much as digits as its factorization.

521463654053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 521463654053 in words is "five hundred twenty-one billion, four hundred sixty-three million, six hundred fifty-four thousand, fifty-three".