25414625543 has 2 divisors, whose sum is σ = 25414625544. Its totient is φ = 25414625542.

The previous prime is 25414625539. The next prime is 25414625557. The reversal of 25414625543 is 34552641452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25414625543 - 2² = 25414625539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25414625543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25414625563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12707312771 + 12707312772.

It is an arithmetic number, because the mean of its divisors is an integer number (12707312772).

Almost surely, 2^25414625543 is an apocalyptic number.

25414625543 is a deficient number, since it is larger than the sum of its proper divisors (1).

25414625543 is an equidigital number, since it uses as much as digits as its factorization.

25414625543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576000, while the sum is 41.

The spelling of 25414625543 in words is "twenty-five billion, four hundred fourteen million, six hundred twenty-five thousand, five hundred forty-three".