56953431447 has 16 divisors (see below), whose sum is σ = 85080312192. Its totient is φ = 33584332320.

The previous prime is 56953431421. The next prime is 56953431449. The reversal of 56953431447 is 74413435965.

It is not a de Polignac number, because 56953431447 - 2²² = 56949237143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56953431447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56953431449) 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 in 15 ways as a sum of consecutive naturals, for example, 23321233 + ... + 23323674.

It is an arithmetic number, because the mean of its divisors is an integer number (5317519512).

Almost surely, 2^56953431447 is an apocalyptic number.

56953431447 is a deficient number, since it is larger than the sum of its proper divisors (28126880745).

56953431447 is a wasteful number, since it uses less digits than its factorization.

56953431447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46644958.

The product of its digits is 5443200, while the sum is 51.

The spelling of 56953431447 in words is "fifty-six billion, nine hundred fifty-three million, four hundred thirty-one thousand, four hundred forty-seven".