25234172047 has 12 divisors (see below), whose sum is σ = 29683862640. Its totient is φ = 21386260896.

The previous prime is 25234171967. The next prime is 25234172057. The reversal of 25234172047 is 74027143252.

It is not a de Polignac number, because 25234172047 - 2¹⁹ = 25233647759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25234171997 and 25234172015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25234172057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2888803 + ... + 2897524.

It is an arithmetic number, because the mean of its divisors is an integer number (2473655220).

Almost surely, 2^25234172047 is an apocalyptic number.

25234172047 is a deficient number, since it is larger than the sum of its proper divisors (4449690593).

25234172047 is an equidigital number, since it uses as much as digits as its factorization.

25234172047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5786430 (or 5786423 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 25234172047 in words is "twenty-five billion, two hundred thirty-four million, one hundred seventy-two thousand, forty-seven".