620632563 has 8 divisors (see below), whose sum is σ = 828039168. Its totient is φ = 413490504.

The previous prime is 620632553. The next prime is 620632601. The reversal of 620632563 is 365236026.

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

It is not a de Polignac number, because 620632563 - 2¹⁷ = 620501491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620632553) 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, 60595 + ... + 70092.

It is an arithmetic number, because the mean of its divisors is an integer number (103504896).

Almost surely, 2^620632563 is an apocalyptic number.

620632563 is a deficient number, since it is larger than the sum of its proper divisors (207406605).

620632563 is a wasteful number, since it uses less digits than its factorization.

620632563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132273.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 620632563 is about 24912.4981284495. The cubic root of 620632563 is about 852.9917931323.

Adding to 620632563 its reverse (365236026), we get a palindrome (985868589).

The spelling of 620632563 in words is "six hundred twenty million, six hundred thirty-two thousand, five hundred sixty-three".