20552354352 has 120 divisors (see below), whose sum is σ = 60290141184. Its totient is φ = 6523304832.

The previous prime is 20552354299. The next prime is 20552354371. The reversal of 20552354352 is 25345325502.

20552354352 is a `hidden beast` number, since 2 + 0 + 552 + 3 + 54 + 3 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724663 + ... + 752489.

Almost surely, 2^20552354352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20552354352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30145070592).

20552354352 is an abundant number, since it is smaller than the sum of its proper divisors (39737786832).

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

20552354352 is a wasteful number, since it uses less digits than its factorization.

20552354352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28087 (or 28078 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 36.

Adding to 20552354352 its reverse (25345325502), we get a palindrome (45897679854).

The spelling of 20552354352 in words is "twenty billion, five hundred fifty-two million, three hundred fifty-four thousand, three hundred fifty-two".