20611010 has 32 divisors (see below), whose sum is σ = 44634240. Its totient is φ = 6694272.

The previous prime is 20611007. The next prime is 20611033. The reversal of 20611010 is 1011602.

It is a junction number, because it is equal to n+sod(n) for n = 20610982 and 20611000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6419 + ... + 9078.

It is an arithmetic number, because the mean of its divisors is an integer number (1394820).

Almost surely, 2^20611010 is an apocalyptic number.

20611010 is an abundant number, since it is smaller than the sum of its proper divisors (24023230).

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

20611010 is a wasteful number, since it uses less digits than its factorization.

20611010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15530.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 20611010 is about 4539.9350215614. The cubic root of 20611010 is about 274.1783075816.

Adding to 20611010 its reverse (1011602), we get a palindrome (21622612).

The spelling of 20611010 in words is "twenty million, six hundred eleven thousand, ten".