20506233952 has 48 divisors (see below), whose sum is σ = 42763466592. Its totient is φ = 9646151680.

The previous prime is 20506233929. The next prime is 20506233959. The reversal of 20506233952 is 25933260502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20506233959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729998 + ... + 1741810.

It is an arithmetic number, because the mean of its divisors is an integer number (890905554).

Almost surely, 2^20506233952 is an apocalyptic number.

It is an amenable number.

20506233952 is an abundant number, since it is smaller than the sum of its proper divisors (22257232640).

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

20506233952 is a wasteful number, since it uses less digits than its factorization.

20506233952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15031 (or 15023 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 20506233952 in words is "twenty billion, five hundred six million, two hundred thirty-three thousand, nine hundred fifty-two".