20112152552 has 8 divisors (see below), whose sum is σ = 37710286050. Its totient is φ = 10056076272.

The previous prime is 20112152443. The next prime is 20112152561. The reversal of 20112152552 is 25525121102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14608589956 + 5503562596 = 120866^2 + 74186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20112152552² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257009527 + ... + 1257009542.

Almost surely, 2^20112152552 is an apocalyptic number.

It is an amenable number.

20112152552 is a deficient number, since it is larger than the sum of its proper divisors (17598133498).

20112152552 is a wasteful number, since it uses less digits than its factorization.

20112152552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514019075 (or 2514019071 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 20112152552 its reverse (25525121102), we get a palindrome (45637273654).

The spelling of 20112152552 in words is "twenty billion, one hundred twelve million, one hundred fifty-two thousand, five hundred fifty-two".