620256103 has 4 divisors (see below), whose sum is σ = 620316808. Its totient is φ = 620195400.

The previous prime is 620256079. The next prime is 620256127. The reversal of 620256103 is 301652026.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (620256079) and next prime (620256127).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620256103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620256163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10848 + ... + 36853.

It is an arithmetic number, because the mean of its divisors is an integer number (155079202).

Almost surely, 2^620256103 is an apocalyptic number.

620256103 is a deficient number, since it is larger than the sum of its proper divisors (60705).

620256103 is a wasteful number, since it uses less digits than its factorization.

620256103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60704.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 620256103 is about 24904.9413370118. The cubic root of 620256103 is about 852.8192905069.

The spelling of 620256103 in words is "six hundred twenty million, two hundred fifty-six thousand, one hundred three".