26725157057 has 2 divisors, whose sum is σ = 26725157058. Its totient is φ = 26725157056.

The previous prime is 26725156957. The next prime is 26725157087. The reversal of 26725157057 is 75075152762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26711326096 + 13830961 = 163436^2 + 3719^2 .

It is a cyclic number.

It is not a de Polignac number, because 26725157057 - 2²² = 26720962753 is a prime.

It is not a weakly prime, because it can be changed into another prime (26725157087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13362578528 + 13362578529.

It is an arithmetic number, because the mean of its divisors is an integer number (13362578529).

Almost surely, 2^26725157057 is an apocalyptic number.

It is an amenable number.

26725157057 is a deficient number, since it is larger than the sum of its proper divisors (1).

26725157057 is an equidigital number, since it uses as much as digits as its factorization.

26725157057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1029000, while the sum is 47.

The spelling of 26725157057 in words is "twenty-six billion, seven hundred twenty-five million, one hundred fifty-seven thousand, fifty-seven".