56205177803 has 2 divisors, whose sum is σ = 56205177804. Its totient is φ = 56205177802.

The previous prime is 56205177767. The next prime is 56205177823. The reversal of 56205177803 is 30877150265.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56205177803 - 2²² = 56200983499 is a prime.

It is not a weakly prime, because it can be changed into another prime (56205177823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28102588901 + 28102588902.

It is an arithmetic number, because the mean of its divisors is an integer number (28102588902).

Almost surely, 2^56205177803 is an apocalyptic number.

56205177803 is a deficient number, since it is larger than the sum of its proper divisors (1).

56205177803 is an equidigital number, since it uses as much as digits as its factorization.

56205177803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 56205177803 in words is "fifty-six billion, two hundred five million, one hundred seventy-seven thousand, eight hundred three".