402555563 has 8 divisors (see below), whose sum is σ = 426899808. Its totient is φ = 378285184.

The previous prime is 402555547. The next prime is 402555577. The reversal of 402555563 is 365555204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402555563 - 2⁴ = 402555547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402555163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7031 + ... + 29232.

It is an arithmetic number, because the mean of its divisors is an integer number (53362476).

Almost surely, 2^402555563 is an apocalyptic number.

402555563 is a deficient number, since it is larger than the sum of its proper divisors (24344245).

402555563 is a wasteful number, since it uses less digits than its factorization.

402555563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36933.

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 402555563 is about 20063.7873543357. The cubic root of 402555563 is about 738.3720989633.

The spelling of 402555563 in words is "four hundred two million, five hundred fifty-five thousand, five hundred sixty-three".