25051101231 has 16 divisors (see below), whose sum is σ = 35973926240. Its totient is φ = 15414727680.

The previous prime is 25051101167. The next prime is 25051101263. The reversal of 25051101231 is 13210115052.

It is not a de Polignac number, because 25051101231 - 2⁶ = 25051101167 is a prime.

It is a super-2 number, since 2×25051101231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25051101198 and 25051101207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25051101331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618771 + ... + 658011.

It is an arithmetic number, because the mean of its divisors is an integer number (2248370390).

Almost surely, 2^25051101231 is an apocalyptic number.

25051101231 is a deficient number, since it is larger than the sum of its proper divisors (10922825009).

25051101231 is a wasteful number, since it uses less digits than its factorization.

25051101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55626.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 25051101231 its reverse (13210115052), we get a palindrome (38261216283).

The spelling of 25051101231 in words is "twenty-five billion, fifty-one million, one hundred one thousand, two hundred thirty-one".