25582752157 has 2 divisors, whose sum is σ = 25582752158. Its totient is φ = 25582752156.

The previous prime is 25582752101. The next prime is 25582752193. The reversal of 25582752157 is 75125728552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25582722916 + 29241 = 159946^2 + 171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25582752157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25582752157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25582752457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12791376078 + 12791376079.

It is an arithmetic number, because the mean of its divisors is an integer number (12791376079).

Almost surely, 2^25582752157 is an apocalyptic number.

It is an amenable number.

25582752157 is a deficient number, since it is larger than the sum of its proper divisors (1).

25582752157 is an equidigital number, since it uses as much as digits as its factorization.

25582752157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960000, while the sum is 49.

The spelling of 25582752157 in words is "twenty-five billion, five hundred eighty-two million, seven hundred fifty-two thousand, one hundred fifty-seven".