20508060 has 48 divisors (see below), whose sum is σ = 57859200. Its totient is φ = 5427264.

The previous prime is 20508053. The next prime is 20508071. The reversal of 20508060 is 6080502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7111 + ... + 9569.

It is an arithmetic number, because the mean of its divisors is an integer number (1205400).

Almost surely, 2^20508060 is an apocalyptic number.

20508060 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 20508060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28929600).

20508060 is an abundant number, since it is smaller than the sum of its proper divisors (37351140).

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

20508060 is a wasteful number, since it uses less digits than its factorization.

20508060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610 (or 2608 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20508060 is about 4528.5825596979. The cubic root of 20508060 is about 273.7210473748.

Adding to 20508060 its reverse (6080502), we get a palindrome (26588562).

The spelling of 20508060 in words is "twenty million, five hundred eight thousand, sixty".