20512041 has 20 divisors (see below), whose sum is σ = 30148560. Its totient is φ = 12404920.

The previous prime is 20512031. The next prime is 20512073. The reversal of 20512041 is 14021502.

It is not a de Polignac number, because 20512041 - 2⁶ = 20511977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20512041.

It is not an unprimeable number, because it can be changed into a prime (20512031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43690 + ... + 44156.

It is an arithmetic number, because the mean of its divisors is an integer number (1507428).

Almost surely, 2^20512041 is an apocalyptic number.

It is an amenable number.

20512041 is a deficient number, since it is larger than the sum of its proper divisors (9636519).

20512041 is an frugal number, since it uses more digits than its factorization.

20512041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 20512041 is about 4529.0220798755. The cubic root of 20512041 is about 273.7387576960.

Adding to 20512041 its reverse (14021502), we get a palindrome (34533543).

It can be divided in two parts, 205 and 12041, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 20512041 in words is "twenty million, five hundred twelve thousand, forty-one".