25450125243 has 8 divisors (see below), whose sum is σ = 33934237968. Its totient is φ = 16966381344.

The previous prime is 25450125229. The next prime is 25450125271. The reversal of 25450125243 is 34252105452.

It is a happy number.

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

It is not a de Polignac number, because 25450125243 - 2¹⁸ = 25449863099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25450125293) 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, 215505 + ... + 311997.

It is an arithmetic number, because the mean of its divisors is an integer number (4241779746).

Almost surely, 2^25450125243 is an apocalyptic number.

25450125243 is a deficient number, since it is larger than the sum of its proper divisors (8484112725).

25450125243 is an equidigital number, since it uses as much as digits as its factorization.

25450125243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184413.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 25450125243 in words is "twenty-five billion, four hundred fifty million, one hundred twenty-five thousand, two hundred forty-three".