20061524 has 12 divisors (see below), whose sum is σ = 40123104. Its totient is φ = 8597784.

The previous prime is 20061523. The next prime is 20061539. The reversal of 20061524 is 42516002.

It is a happy number.

20061524 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20061496 and 20061505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20061523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358214 + ... + 358269.

It is an arithmetic number, because the mean of its divisors is an integer number (3343592).

Almost surely, 2^20061524 is an apocalyptic number.

It is an amenable number.

20061524 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20061524 is a wasteful number, since it uses less digits than its factorization.

20061524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716494 (or 716492 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20061524 is about 4479.0092654515. The cubic root of 20061524 is about 271.7198131225.

Adding to 20061524 its reverse (42516002), we get a palindrome (62577526).

The spelling of 20061524 in words is "twenty million, sixty-one thousand, five hundred twenty-four".