2563020 has 72 divisors (see below), whose sum is σ = 8058960. Its totient is φ = 658560.

The previous prime is 2563013. The next prime is 2563063. The reversal of 2563020 is 203652.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2562984 and 2563002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4975 + ... + 5465.

It is an arithmetic number, because the mean of its divisors is an integer number (111930).

2^2563020 is an apocalyptic number.

2563020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2563020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4029480).

2563020 is an abundant number, since it is smaller than the sum of its proper divisors (5495940).

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

2563020 is a wasteful number, since it uses less digits than its factorization.

2563020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2563020 is about 1600.9434718315. The cubic root of 2563020 is about 136.8518475883.

Adding to 2563020 its reverse (203652), we get a palindrome (2766672).

The spelling of 2563020 in words is "two million, five hundred sixty-three thousand, twenty".