5561356403 has 2 divisors, whose sum is σ = 5561356404. Its totient is φ = 5561356402.

The previous prime is 5561356393. The next prime is 5561356483. The reversal of 5561356403 is 3046531655.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5561356403 is a prime.

It is not a weakly prime, because it can be changed into another prime (5561356483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780678201 + 2780678202.

It is an arithmetic number, because the mean of its divisors is an integer number (2780678202).

Almost surely, 2^5561356403 is an apocalyptic number.

5561356403 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561356403 is an equidigital number, since it uses as much as digits as its factorization.

5561356403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 38.

The square root of 5561356403 is about 74574.5023650845. The cubic root of 5561356403 is about 1771.7138329036.

The spelling of 5561356403 in words is "five billion, five hundred sixty-one million, three hundred fifty-six thousand, four hundred three".