25143403139 has 2 divisors, whose sum is σ = 25143403140. Its totient is φ = 25143403138.

The previous prime is 25143403123. The next prime is 25143403147. The reversal of 25143403139 is 93130434152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25143403139 - 2⁴ = 25143403123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25143403099 and 25143403108.

It is not a weakly prime, because it can be changed into another prime (25143402139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12571701569 + 12571701570.

It is an arithmetic number, because the mean of its divisors is an integer number (12571701570).

Almost surely, 2^25143403139 is an apocalyptic number.

25143403139 is a deficient number, since it is larger than the sum of its proper divisors (1).

25143403139 is an equidigital number, since it uses as much as digits as its factorization.

25143403139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 25143403139 in words is "twenty-five billion, one hundred forty-three million, four hundred three thousand, one hundred thirty-nine".