20235551252 has 12 divisors (see below), whose sum is σ = 40471102560. Its totient is φ = 8672379096.

The previous prime is 20235551243. The next prime is 20235551257. The reversal of 20235551252 is 25215553202.

20235551252 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235551257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361349102 + ... + 361349157.

It is an arithmetic number, because the mean of its divisors is an integer number (3372591880).

Almost surely, 2^20235551252 is an apocalyptic number.

It is an amenable number.

20235551252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20235551252 is a wasteful number, since it uses less digits than its factorization.

20235551252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722698270 (or 722698268 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 20235551252 in words is "twenty billion, two hundred thirty-five million, five hundred fifty-one thousand, two hundred fifty-two".