20110051 has 4 divisors (see below), whose sum is σ = 21656992. Its totient is φ = 18563112.

The previous prime is 20110043. The next prime is 20110087. The reversal of 20110051 is 15001102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20110051 - 2³ = 20110043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773451 + ... + 773476.

It is an arithmetic number, because the mean of its divisors is an integer number (5414248).

Almost surely, 2^20110051 is an apocalyptic number.

20110051 is a deficient number, since it is larger than the sum of its proper divisors (1546941).

20110051 is a wasteful number, since it uses less digits than its factorization.

20110051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546940.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 20110051 is about 4484.4231513094. The cubic root of 20110051 is about 271.9387252040.

Adding to 20110051 its reverse (15001102), we get a palindrome (35111153).

The spelling of 20110051 in words is "twenty million, one hundred ten thousand, fifty-one".