20531060 has 24 divisors (see below), whose sum is σ = 47035296. Its totient is φ = 7465760.

The previous prime is 20531059. The next prime is 20531089. The reversal of 20531060 is 6013502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46442 + ... + 46881.

It is an arithmetic number, because the mean of its divisors is an integer number (1959804).

Almost surely, 2^20531060 is an apocalyptic number.

20531060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20531060 is an abundant number, since it is smaller than the sum of its proper divisors (26504236).

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

20531060 is a wasteful number, since it uses less digits than its factorization.

20531060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93343 (or 93341 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 20531060 is about 4531.1212740336. The cubic root of 20531060 is about 273.8233361340.

Adding to 20531060 its reverse (6013502), we get a palindrome (26544562).

It can be divided in two parts, 2053 and 1060, that added together give a palindrome (3113).

The spelling of 20531060 in words is "twenty million, five hundred thirty-one thousand, sixty".