25054245147 has 4 divisors (see below), whose sum is σ = 33405660200. Its totient is φ = 16702830096.

The previous prime is 25054245131. The next prime is 25054245149. The reversal of 25054245147 is 74154245052.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25054245147 - 2⁴ = 25054245131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25054245149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175707522 + ... + 4175707527.

It is an arithmetic number, because the mean of its divisors is an integer number (8351415050).

Almost surely, 2^25054245147 is an apocalyptic number.

25054245147 is a deficient number, since it is larger than the sum of its proper divisors (8351415053).

25054245147 is an equidigital number, since it uses as much as digits as its factorization.

25054245147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8351415052.

The product of its (nonzero) digits is 224000, while the sum is 39.

The spelling of 25054245147 in words is "twenty-five billion, fifty-four million, two hundred forty-five thousand, one hundred forty-seven".