2520021085 has 8 divisors (see below), whose sum is σ = 3069160416. Its totient is φ = 1985926800.

The previous prime is 2520021083. The next prime is 2520021109. The reversal of 2520021085 is 5801200252.

2520021085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2520021085 - 2¹ = 2520021083 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 (2520021083) 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, 3760891 + ... + 3761560.

It is an arithmetic number, because the mean of its divisors is an integer number (383645052).

Almost surely, 2^2520021085 is an apocalyptic number.

It is an amenable number.

2520021085 is a deficient number, since it is larger than the sum of its proper divisors (549139331).

2520021085 is an equidigital number, since it uses as much as digits as its factorization.

2520021085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522523.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 2520021085 is about 50199.8116032321. The cubic root of 2520021085 is about 1360.8222185315.

The spelling of 2520021085 in words is "two billion, five hundred twenty million, twenty-one thousand, eighty-five".