25534234103 has 4 divisors (see below), whose sum is σ = 29181981840. Its totient is φ = 21886486368.

The previous prime is 25534234091. The next prime is 25534234129. The reversal of 25534234103 is 30143243552.

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 25534234103 - 2⁸ = 25534233847 is a prime.

It is a super-2 number, since 2×25534234103² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25534234103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25534234603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1823873858 + ... + 1823873871.

It is an arithmetic number, because the mean of its divisors is an integer number (7295495460).

Almost surely, 2^25534234103 is an apocalyptic number.

25534234103 is a deficient number, since it is larger than the sum of its proper divisors (3647747737).

25534234103 is an equidigital number, since it uses as much as digits as its factorization.

25534234103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647747736.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 25534234103 its reverse (30143243552), we get a palindrome (55677477655).

The spelling of 25534234103 in words is "twenty-five billion, five hundred thirty-four million, two hundred thirty-four thousand, one hundred three".