20041125251 has 16 divisors (see below), whose sum is σ = 23374790400. Its totient is φ = 16827183648.

The previous prime is 20041125227. The next prime is 20041125263. The reversal of 20041125251 is 15252114002.

It is a cyclic number.

It is not a de Polignac number, because 20041125251 - 2¹⁸ = 20040863107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20041125151) 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, 31145 + ... + 202613.

It is an arithmetic number, because the mean of its divisors is an integer number (1460924400).

Almost surely, 2^20041125251 is an apocalyptic number.

20041125251 is a deficient number, since it is larger than the sum of its proper divisors (3333665149).

20041125251 is a wasteful number, since it uses less digits than its factorization.

20041125251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171818.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 20041125251 its reverse (15252114002), we get a palindrome (35293239253).

The spelling of 20041125251 in words is "twenty billion, forty-one million, one hundred twenty-five thousand, two hundred fifty-one".