25953102031 has 4 divisors (see below), whose sum is σ = 25954128064. Its totient is φ = 25952076000.

The previous prime is 25953101987. The next prime is 25953102047. The reversal of 25953102031 is 13020135952.

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 25953102031 - 2⁹ = 25953101519 is a prime.

It is a super-2 number, since 2×25953102031² (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 = 25953101984 and 25953102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25953109031) 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 3 ways as a sum of consecutive naturals, for example, 474090 + ... + 525991.

It is an arithmetic number, because the mean of its divisors is an integer number (6488532016).

Almost surely, 2^25953102031 is an apocalyptic number.

25953102031 is a deficient number, since it is larger than the sum of its proper divisors (1026033).

25953102031 is a wasteful number, since it uses less digits than its factorization.

25953102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026032.

The product of its (nonzero) digits is 8100, while the sum is 31.

Adding to 25953102031 its reverse (13020135952), we get a palindrome (38973237983).

The spelling of 25953102031 in words is "twenty-five billion, nine hundred fifty-three million, one hundred two thousand, thirty-one".