2513205020 has 24 divisors (see below), whose sum is σ = 5420373504. Its totient is φ = 978111936.

The previous prime is 2513205011. The next prime is 2513205049. The reversal of 2513205020 is 205023152.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2513204983 and 2513205001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1697372 + ... + 1698851.

It is an arithmetic number, because the mean of its divisors is an integer number (225848896).

Almost surely, 2^2513205020 is an apocalyptic number.

2513205020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2513205020 is an abundant number, since it is smaller than the sum of its proper divisors (2907168484).

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

2513205020 is a wasteful number, since it uses less digits than its factorization.

2513205020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396269 (or 3396267 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2513205020 is about 50131.8762864507. The cubic root of 2513205020 is about 1359.5942092396.

Adding to 2513205020 its reverse (205023152), we get a palindrome (2718228172).

The spelling of 2513205020 in words is "two billion, five hundred thirteen million, two hundred five thousand, twenty".