25928105057 has 2 divisors, whose sum is σ = 25928105058. Its totient is φ = 25928105056.

The previous prime is 25928105053. The next prime is 25928105069. The reversal of 25928105057 is 75050182952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14006959201 + 11921145856 = 118351^2 + 109184^2 .

It is a cyclic number.

It is not a de Polignac number, because 25928105057 - 2² = 25928105053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25928104999 and 25928105017.

It is not a weakly prime, because it can be changed into another prime (25928105051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12964052528 + 12964052529.

It is an arithmetic number, because the mean of its divisors is an integer number (12964052529).

Almost surely, 2^25928105057 is an apocalyptic number.

It is an amenable number.

25928105057 is a deficient number, since it is larger than the sum of its proper divisors (1).

25928105057 is an equidigital number, since it uses as much as digits as its factorization.

25928105057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 25928105057 in words is "twenty-five billion, nine hundred twenty-eight million, one hundred five thousand, fifty-seven".