20550647235 has 16 divisors (see below), whose sum is σ = 32906418336. Its totient is φ = 10951884288.

The previous prime is 20550647191. The next prime is 20550647239. The reversal of 20550647235 is 53274605502.

It is a happy number.

It is not a de Polignac number, because 20550647235 - 2¹⁸ = 20550385091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20550647193 and 20550647202.

It is not an unprimeable number, because it can be changed into a prime (20550647239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508704 + ... + 547613.

It is an arithmetic number, because the mean of its divisors is an integer number (2056651146).

Almost surely, 2^20550647235 is an apocalyptic number.

20550647235 is a deficient number, since it is larger than the sum of its proper divisors (12355771101).

20550647235 is a wasteful number, since it uses less digits than its factorization.

20550647235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057622.

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 20550647235 in words is "twenty billion, five hundred fifty million, six hundred forty-seven thousand, two hundred thirty-five".