20014251 has 16 divisors (see below), whose sum is σ = 27675648. Its totient is φ = 12852000.

The previous prime is 20014249. The next prime is 20014259. The reversal of 20014251 is 15241002.

It is not a de Polignac number, because 20014251 - 2¹ = 20014249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20014251.

It is not an unprimeable number, because it can be changed into a prime (20014259) 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, 28201 + ... + 28901.

It is an arithmetic number, because the mean of its divisors is an integer number (1729728).

Almost surely, 2^20014251 is an apocalyptic number.

20014251 is a deficient number, since it is larger than the sum of its proper divisors (7661397).

20014251 is a wasteful number, since it uses less digits than its factorization.

20014251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 20014251 is about 4473.7289815097. The cubic root of 20014251 is about 271.5062182948.

Adding to 20014251 its reverse (15241002), we get a palindrome (35255253).

The spelling of 20014251 in words is "twenty million, fourteen thousand, two hundred fifty-one".