2021625059 has 4 divisors (see below), whose sum is σ = 2026666920. Its totient is φ = 2016583200.

The previous prime is 2021625049. The next prime is 2021625077. The reversal of 2021625059 is 9505261202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021625059 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2021625049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2520329 + ... + 2521130.

It is an arithmetic number, because the mean of its divisors is an integer number (506666730).

Almost surely, 2^2021625059 is an apocalyptic number.

2021625059 is a deficient number, since it is larger than the sum of its proper divisors (5041861).

2021625059 is an equidigital number, since it uses as much as digits as its factorization.

2021625059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041860.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 2021625059 is about 44962.4850180681. The cubic root of 2021625059 is about 1264.4457588589.

It can be divided in two parts, 202 and 1625059, that added together give a palindrome (1625261).

The spelling of 2021625059 in words is "two billion, twenty-one million, six hundred twenty-five thousand, fifty-nine".