25830657043 has 2 divisors, whose sum is σ = 25830657044. Its totient is φ = 25830657042.

The previous prime is 25830657029. The next prime is 25830657091. The reversal of 25830657043 is 34075603852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25830657043 - 2⁹ = 25830656531 is a prime.

It is not a weakly prime, because it can be changed into another prime (25830657023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12915328521 + 12915328522.

It is an arithmetic number, because the mean of its divisors is an integer number (12915328522).

Almost surely, 2^25830657043 is an apocalyptic number.

25830657043 is a deficient number, since it is larger than the sum of its proper divisors (1).

25830657043 is an equidigital number, since it uses as much as digits as its factorization.

25830657043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 25830657043 in words is "twenty-five billion, eight hundred thirty million, six hundred fifty-seven thousand, forty-three".