20533232352 has 48 divisors (see below), whose sum is σ = 53965118592. Its totient is φ = 6836108160.

The previous prime is 20533232327. The next prime is 20533232371. The reversal of 20533232352 is 25323233502.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×20533232352² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49924 + ... + 208707.

It is an arithmetic number, because the mean of its divisors is an integer number (1124273304).

Almost surely, 2^20533232352 is an apocalyptic number.

It is an amenable number.

20533232352 is an abundant number, since it is smaller than the sum of its proper divisors (33431886240).

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

20533232352 is a wasteful number, since it uses less digits than its factorization.

20533232352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259471 (or 259463 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 20533232352 its reverse (25323233502), we get a palindrome (45856465854).

The spelling of 20533232352 in words is "twenty billion, five hundred thirty-three million, two hundred thirty-two thousand, three hundred fifty-two".