20700052 has 12 divisors (see below), whose sum is σ = 36766240. Its totient is φ = 10195416.

The previous prime is 20700049. The next prime is 20700059. The reversal of 20700052 is 25000702.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20699999 and 20700035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20700059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38352 + ... + 38887.

Almost surely, 2^20700052 is an apocalyptic number.

It is an amenable number.

20700052 is a deficient number, since it is larger than the sum of its proper divisors (16066188).

20700052 is a wasteful number, since it uses less digits than its factorization.

20700052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77310 (or 77308 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 20700052 is about 4549.7309810581. The cubic root of 20700052 is about 274.5725679432.

Adding to 20700052 its reverse (25000702), we get a palindrome (45700754).

The spelling of 20700052 in words is "twenty million, seven hundred thousand, fifty-two".