56557147301 has 2 divisors, whose sum is σ = 56557147302. Its totient is φ = 56557147300.

The previous prime is 56557147271. The next prime is 56557147321. The reversal of 56557147301 is 10374175565.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56449008100 + 108139201 = 237590^2 + 10399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56557147301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56557147321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28278573650 + 28278573651.

It is an arithmetic number, because the mean of its divisors is an integer number (28278573651).

Almost surely, 2^56557147301 is an apocalyptic number.

It is an amenable number.

56557147301 is a deficient number, since it is larger than the sum of its proper divisors (1).

56557147301 is an equidigital number, since it uses as much as digits as its factorization.

56557147301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 56557147301 in words is "fifty-six billion, five hundred fifty-seven million, one hundred forty-seven thousand, three hundred one".