25104254543 has 4 divisors (see below), whose sum is σ = 25107243408. Its totient is φ = 25101265680.

The previous prime is 25104254537. The next prime is 25104254557. The reversal of 25104254543 is 34545240152.

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 25104254543 - 2¹² = 25104250447 is a prime.

It is a super-2 number, since 2×25104254543² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25104254533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481798 + ... + 1498643.

It is an arithmetic number, because the mean of its divisors is an integer number (6276810852).

Almost surely, 2^25104254543 is an apocalyptic number.

25104254543 is a deficient number, since it is larger than the sum of its proper divisors (2988865).

25104254543 is an equidigital number, since it uses as much as digits as its factorization.

25104254543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988864.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 25104254543 its reverse (34545240152), we get a palindrome (59649494695).

The spelling of 25104254543 in words is "twenty-five billion, one hundred four million, two hundred fifty-four thousand, five hundred forty-three".