56328147929 has 2 divisors, whose sum is σ = 56328147930. Its totient is φ = 56328147928.

The previous prime is 56328147881. The next prime is 56328147937. The reversal of 56328147929 is 92974182365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52349440000 + 3978707929 = 228800^2 + 63077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56328147929 is a prime.

It is a super-2 number, since 2×56328147929² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56328147979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28164073964 + 28164073965.

It is an arithmetic number, because the mean of its divisors is an integer number (28164073965).

Almost surely, 2^56328147929 is an apocalyptic number.

It is an amenable number.

56328147929 is a deficient number, since it is larger than the sum of its proper divisors (1).

56328147929 is an equidigital number, since it uses as much as digits as its factorization.

56328147929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 56.

The spelling of 56328147929 in words is "fifty-six billion, three hundred twenty-eight million, one hundred forty-seven thousand, nine hundred twenty-nine".