356405563 has 4 divisors (see below), whose sum is σ = 368695440. Its totient is φ = 344115688.

The previous prime is 356405557. The next prime is 356405597. The reversal of 356405563 is 365504653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365504653 = 19 ⋅19237087.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-356405563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (356403563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6144895 + ... + 6144952.

It is an arithmetic number, because the mean of its divisors is an integer number (92173860).

Almost surely, 2^356405563 is an apocalyptic number.

356405563 is a deficient number, since it is larger than the sum of its proper divisors (12289877).

356405563 is a wasteful number, since it uses less digits than its factorization.

356405563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12289876.

The product of its (nonzero) digits is 162000, while the sum is 37.

The square root of 356405563 is about 18878.7066029429. The cubic root of 356405563 is about 709.0031391539.

The spelling of 356405563 in words is "three hundred fifty-six million, four hundred five thousand, five hundred sixty-three".