20524045 has 8 divisors (see below), whose sum is σ = 24806880. Its totient is φ = 16300560.

The previous prime is 20524039. The next prime is 20524061. The reversal of 20524045 is 54042502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20524045 - 2³ = 20524037 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 14071 + ... + 15460.

It is an arithmetic number, because the mean of its divisors is an integer number (3100860).

Almost surely, 2^20524045 is an apocalyptic number.

It is an amenable number.

20524045 is a deficient number, since it is larger than the sum of its proper divisors (4282835).

20524045 is a wasteful number, since it uses less digits than its factorization.

20524045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29675.

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

The square root of 20524045 is about 4530.3471169437. The cubic root of 20524045 is about 273.7921461627.

Adding to 20524045 its reverse (54042502), we get a palindrome (74566547).

The spelling of 20524045 in words is "twenty million, five hundred twenty-four thousand, forty-five".