20752011 has 32 divisors (see below), whose sum is σ = 35750400. Its totient is φ = 11651040.

The previous prime is 20752001. The next prime is 20752013. The reversal of 20752011 is 11025702.

It is not a de Polignac number, because 20752011 - 2¹³ = 20743819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20752013) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 10221 + ... + 12081.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 2^20752011 is an apocalyptic number.

20752011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20752011 is a deficient number, since it is larger than the sum of its proper divisors (14998389).

20752011 is a wasteful number, since it uses less digits than its factorization.

20752011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 20752011 is about 4555.4375201511. The cubic root of 20752011 is about 274.8021099741.

Adding to 20752011 its reverse (11025702), we get a palindrome (31777713).

The spelling of 20752011 in words is "twenty million, seven hundred fifty-two thousand, eleven".