20051151 has 16 divisors (see below), whose sum is σ = 28408800. Its totient is φ = 12555648.

The previous prime is 20051149. The next prime is 20051159. The reversal of 20051151 is 15115002.

It is not a de Polignac number, because 20051151 - 2¹ = 20051149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20051151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051159) 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, 105 + ... + 6333.

It is an arithmetic number, because the mean of its divisors is an integer number (1775550).

Almost surely, 2^20051151 is an apocalyptic number.

20051151 is a deficient number, since it is larger than the sum of its proper divisors (8357649).

20051151 is a wasteful number, since it uses less digits than its factorization.

20051151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 20051151 is about 4477.8511587591. The cubic root of 20051151 is about 271.6729732855.

Adding to 20051151 its reverse (15115002), we get a palindrome (35166153).

It can be divided in two parts, 20051 and 151, that added together give a palindrome (20202).

The spelling of 20051151 in words is "twenty million, fifty-one thousand, one hundred fifty-one".