56335390549 has 2 divisors, whose sum is σ = 56335390550. Its totient is φ = 56335390548.

The previous prime is 56335390499. The next prime is 56335390571. The reversal of 56335390549 is 94509353365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54572230449 + 1763160100 = 233607^2 + 41990^2 .

It is a cyclic number.

It is not a de Polignac number, because 56335390549 - 2²⁷ = 56201172821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56335390496 and 56335390505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56335390249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28167695274 + 28167695275.

It is an arithmetic number, because the mean of its divisors is an integer number (28167695275).

Almost surely, 2^56335390549 is an apocalyptic number.

It is an amenable number.

56335390549 is a deficient number, since it is larger than the sum of its proper divisors (1).

56335390549 is an equidigital number, since it uses as much as digits as its factorization.

56335390549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561000, while the sum is 52.

The spelling of 56335390549 in words is "fifty-six billion, three hundred thirty-five million, three hundred ninety thousand, five hundred forty-nine".