620088256530 has 24 divisors (see below), whose sum is σ = 1612229467212. Its totient is φ = 165356868384.

The previous prime is 620088256511. The next prime is 620088256531. The reversal of 620088256530 is 35652880026.

620088256530 is a `hidden beast` number, since 6 + 2 + 0 + 0 + 8 + 82 + 565 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 599582302929 + 20505953601 = 774327^2 + 143199^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (620088256531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3444934669 + ... + 3444934848.

Almost surely, 2^620088256530 is an apocalyptic number.

620088256530 is an abundant number, since it is smaller than the sum of its proper divisors (992141210682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620088256530 is a wasteful number, since it uses less digits than its factorization.

620088256530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889869530 (or 6889869527 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 620088256530 in words is "six hundred twenty billion, eighty-eight million, two hundred fifty-six thousand, five hundred thirty".