25002223543 has 4 divisors (see below), whose sum is σ = 27275152968. Its totient is φ = 22729294120.

The previous prime is 25002223523. The next prime is 25002223613. The reversal of 25002223543 is 34532220052.

It is a happy number.

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 25002223543 - 2²⁵ = 24968669111 is a prime.

It is a super-2 number, since 2×25002223543² (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 (25002223523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136464696 + ... + 1136464717.

It is an arithmetic number, because the mean of its divisors is an integer number (6818788242).

Almost surely, 2^25002223543 is an apocalyptic number.

25002223543 is a deficient number, since it is larger than the sum of its proper divisors (2272929425).

25002223543 is a wasteful number, since it uses less digits than its factorization.

25002223543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272929424.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 25002223543 its reverse (34532220052), we get a palindrome (59534443595).

The spelling of 25002223543 in words is "twenty-five billion, two million, two hundred twenty-three thousand, five hundred forty-three".