20545024 has 20 divisors (see below), whose sum is σ = 41050944. Its totient is φ = 10272256.

The previous prime is 20545001. The next prime is 20545037. The reversal of 20545024 is 42054502.

It is a super-2 number, since 2×20545024² = 844196022321152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20544986 and 20545004.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19552 + ... + 20575.

Almost surely, 2^20545024 is an apocalyptic number.

It is an amenable number.

20545024 is a deficient number, since it is larger than the sum of its proper divisors (20505920).

20545024 is an frugal number, since it uses more digits than its factorization.

20545024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40145 (or 40129 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20545024 is about 4532.6619110629. The cubic root of 20545024 is about 273.8854014879.

Adding to 20545024 its reverse (42054502), we get a palindrome (62599526).

The spelling of 20545024 in words is "twenty million, five hundred forty-five thousand, twenty-four".