20351052 has 36 divisors (see below), whose sum is σ = 54152280. Its totient is φ = 6426432.

The previous prime is 20351029. The next prime is 20351053. The reversal of 20351052 is 25015302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20351053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14193 + ... + 15560.

It is an arithmetic number, because the mean of its divisors is an integer number (1504230).

Almost surely, 2^20351052 is an apocalyptic number.

It is an amenable number.

20351052 is an abundant number, since it is smaller than the sum of its proper divisors (33801228).

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

20351052 is a wasteful number, since it uses less digits than its factorization.

20351052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29782 (or 29777 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 20351052 is about 4511.2140272880. The cubic root of 20351052 is about 273.0207286116.

Adding to 20351052 its reverse (25015302), we get a palindrome (45366354).

The spelling of 20351052 in words is "twenty million, three hundred fifty-one thousand, fifty-two".