25001942047 has 2 divisors, whose sum is σ = 25001942048. Its totient is φ = 25001942046.

The previous prime is 25001942027. The next prime is 25001942071. The reversal of 25001942047 is 74024910052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25001942047 - 2¹¹ = 25001939999 is a prime.

It is a super-2 number, since 2×25001942047² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25001942027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500971023 + 12500971024.

It is an arithmetic number, because the mean of its divisors is an integer number (12500971024).

Almost surely, 2^25001942047 is an apocalyptic number.

25001942047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25001942047 is an equidigital number, since it uses as much as digits as its factorization.

25001942047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 25001942047 in words is "twenty-five billion, one million, nine hundred forty-two thousand, forty-seven".