620261002563 has 4 divisors (see below), whose sum is σ = 827014670088. Its totient is φ = 413507335040.

The previous prime is 620261002549. The next prime is 620261002607. The reversal of 620261002563 is 365200162026.

620261002563 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620261002563 - 2⁵ = 620261002531 is a prime.

It is a super-2 number, since 2×620261002563² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (620261002513) 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, 103376833758 + ... + 103376833763.

It is an arithmetic number, because the mean of its divisors is an integer number (206753667522).

Almost surely, 2^620261002563 is an apocalyptic number.

620261002563 is a deficient number, since it is larger than the sum of its proper divisors (206753667525).

620261002563 is a wasteful number, since it uses less digits than its factorization.

620261002563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206753667524.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 620261002563 its reverse (365200162026), we get a palindrome (985461164589).

The spelling of 620261002563 in words is "six hundred twenty billion, two hundred sixty-one million, two thousand, five hundred sixty-three".