5421563655403 has 16 divisors (see below), whose sum is σ = 6276308887296. Its totient is φ = 4586977185120.

The previous prime is 5421563655383. The next prime is 5421563655437. The reversal of 5421563655403 is 3045563651245.

It is a cyclic number.

It is not a de Polignac number, because 5421563655403 - 2⁹ = 5421563654891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5421563655803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3502228 + ... + 4807153.

It is an arithmetic number, because the mean of its divisors is an integer number (392269305456).

Almost surely, 2^{5421563655403} is an apocalyptic number.

5421563655403 is a deficient number, since it is larger than the sum of its proper divisors (854745231893).

5421563655403 is a wasteful number, since it uses less digits than its factorization.

5421563655403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8310594.

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 5421563655403 in words is "five trillion, four hundred twenty-one billion, five hundred sixty-three million, six hundred fifty-five thousand, four hundred three".