20501060 has 24 divisors (see below), whose sum is σ = 43333080. Its totient is φ = 8146944.

The previous prime is 20501029. The next prime is 20501069. The reversal of 20501060 is 6010502.

It can be written as a sum of positive squares in 4 ways, for example, as 16384 + 20484676 = 128^2 + 4526^2 .

It is a super-2 number, since 2×20501060² = 840586922247200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20501069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 6404.

It is an arithmetic number, because the mean of its divisors is an integer number (1805545).

Almost surely, 2^20501060 is an apocalyptic number.

20501060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20501060 is an abundant number, since it is smaller than the sum of its proper divisors (22832020).

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

20501060 is a wasteful number, since it uses less digits than its factorization.

20501060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6695 (or 6693 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20501060 is about 4527.8096249732. The cubic root of 20501060 is about 273.6899008341.

Adding to 20501060 its reverse (6010502), we get a palindrome (26511562).

The spelling of 20501060 in words is "twenty million, five hundred one thousand, sixty".