2020155534 has 12 divisors (see below), whose sum is σ = 4377003696. Its totient is φ = 673385172.

The previous prime is 2020155521. The next prime is 2020155539. The reversal of 2020155534 is 4355510202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2020155498 and 2020155507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020155539) 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 5 ways as a sum of consecutive naturals, for example, 56115414 + ... + 56115449.

It is an arithmetic number, because the mean of its divisors is an integer number (364750308).

Almost surely, 2^2020155534 is an apocalyptic number.

2020155534 is an abundant number, since it is smaller than the sum of its proper divisors (2356848162).

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

2020155534 is a wasteful number, since it uses less digits than its factorization.

2020155534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112230871 (or 112230868 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2020155534 is about 44946.1403682229. The cubic root of 2020155534 is about 1264.1393081885.

Adding to 2020155534 its reverse (4355510202), we get a palindrome (6375665736).

The spelling of 2020155534 in words is "two billion, twenty million, one hundred fifty-five thousand, five hundred thirty-four".