56473619456957 has 2 divisors, whose sum is σ = 56473619456958. Its totient is φ = 56473619456956.

The previous prime is 56473619456911. The next prime is 56473619457037. The reversal of 56473619456957 is 75965491637465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46384013557561 + 10089605899396 = 6810581^2 + 3176414^2 .

It is a cyclic number.

It is not a de Polignac number, because 56473619456957 - 2²⁰ = 56473618408381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56473619446957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28236809728478 + 28236809728479.

It is an arithmetic number, because the mean of its divisors is an integer number (28236809728479).

Almost surely, 2^{56473619456957} is an apocalyptic number.

It is an amenable number.

56473619456957 is a deficient number, since it is larger than the sum of its proper divisors (1).

56473619456957 is an equidigital number, since it uses as much as digits as its factorization.

56473619456957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5143824000, while the sum is 77.

The spelling of 56473619456957 in words is "fifty-six trillion, four hundred seventy-three billion, six hundred nineteen million, four hundred fifty-six thousand, nine hundred fifty-seven".