20551132034 has 4 divisors (see below), whose sum is σ = 30826698054. Its totient is φ = 10275566016.

The previous prime is 20551131977. The next prime is 20551132067. The reversal of 20551132034 is 43023115502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43023115502 = 2 ⋅21511557751.

It can be written as a sum of positive squares in only one way, i.e., 19562218225 + 988913809 = 139865^2 + 31447^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20551131994 and 20551132012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5137783007 + ... + 5137783010.

Almost surely, 2^20551132034 is an apocalyptic number.

20551132034 is a deficient number, since it is larger than the sum of its proper divisors (10275566020).

20551132034 is a wasteful number, since it uses less digits than its factorization.

20551132034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10275566019.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 20551132034 its reverse (43023115502), we get a palindrome (63574247536).

The spelling of 20551132034 in words is "twenty billion, five hundred fifty-one million, one hundred thirty-two thousand, thirty-four".