20551004214 has 32 divisors (see below), whose sum is σ = 44271919104. Its totient is φ = 6322212000.

The previous prime is 20551004203. The next prime is 20551004273. The reversal of 20551004214 is 41240015502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459339 + ... + 502089.

It is an arithmetic number, because the mean of its divisors is an integer number (1383497472).

Almost surely, 2^20551004214 is an apocalyptic number.

20551004214 is an abundant number, since it is smaller than the sum of its proper divisors (23720914890).

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

20551004214 is a wasteful number, since it uses less digits than its factorization.

20551004214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48932.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 20551004214 its reverse (41240015502), we get a palindrome (61791019716).

The spelling of 20551004214 in words is "twenty billion, five hundred fifty-one million, four thousand, two hundred fourteen".