2020515855 has 8 divisors (see below), whose sum is σ = 3232825392. Its totient is φ = 1077608448.

The previous prime is 2020515797. The next prime is 2020515857. The reversal of 2020515855 is 5585150202.

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

It is not a de Polignac number, because 2020515855 - 2⁸ = 2020515599 is a prime.

It is a super-4 number, since 4×2020515855⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020515857) 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, 67350514 + ... + 67350543.

It is an arithmetic number, because the mean of its divisors is an integer number (404103174).

Almost surely, 2^2020515855 is an apocalyptic number.

2020515855 is a deficient number, since it is larger than the sum of its proper divisors (1212309537).

2020515855 is a wasteful number, since it uses less digits than its factorization.

2020515855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134701065.

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 2020515855 is about 44950.1485537034. The cubic root of 2020515855 is about 1264.2144622800.

The spelling of 2020515855 in words is "two billion, twenty million, five hundred fifteen thousand, eight hundred fifty-five".