25453247043 has 8 divisors (see below), whose sum is σ = 38785900288. Its totient is φ = 14544712584.

The previous prime is 25453247021. The next prime is 25453247087. The reversal of 25453247043 is 34074235452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-25453247043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25453246992 and 25453247010.

It is not an unprimeable number, because it can be changed into a prime (25453227043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606029671 + ... + 606029712.

It is an arithmetic number, because the mean of its divisors is an integer number (4848237536).

Almost surely, 2^25453247043 is an apocalyptic number.

25453247043 is a deficient number, since it is larger than the sum of its proper divisors (13332653245).

25453247043 is a wasteful number, since it uses less digits than its factorization.

25453247043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212059393.

The product of its (nonzero) digits is 403200, while the sum is 39.

The spelling of 25453247043 in words is "twenty-five billion, four hundred fifty-three million, two hundred forty-seven thousand, forty-three".