20062500 has 84 divisors (see below), whose sum is σ = 59061744. Its totient is φ = 5300000.

The previous prime is 20062481. The next prime is 20062507. The reversal of 20062500 is 526002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20062500.

It is not an unprimeable number, because it can be changed into a prime (20062507) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 187447 + ... + 187553.

It is an arithmetic number, because the mean of its divisors is an integer number (703116).

Almost surely, 2^20062500 is an apocalyptic number.

20062500 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 20062500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29530872).

20062500 is an abundant number, since it is smaller than the sum of its proper divisors (38999244).

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

20062500 is an equidigital number, since it uses as much as digits as its factorization.

20062500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20062500 is about 4479.1182167922. The cubic root of 20062500 is about 271.7242194717.

Adding to 20062500 its reverse (526002), we get a palindrome (20588502).

The spelling of 20062500 in words is "twenty million, sixty-two thousand, five hundred".