25526500487 has 2 divisors, whose sum is σ = 25526500488. Its totient is φ = 25526500486.

The previous prime is 25526500463. The next prime is 25526500511. The reversal of 25526500487 is 78400562552.

It is a balanced prime because it is at equal distance from previous prime (25526500463) and next prime (25526500511).

It is a cyclic number.

It is not a de Polignac number, because 25526500487 - 2⁸ = 25526500231 is a prime.

It is a super-2 number, since 2×25526500487² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25526500427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12763250243 + 12763250244.

It is an arithmetic number, because the mean of its divisors is an integer number (12763250244).

Almost surely, 2^25526500487 is an apocalyptic number.

25526500487 is a deficient number, since it is larger than the sum of its proper divisors (1).

25526500487 is an equidigital number, since it uses as much as digits as its factorization.

25526500487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672000, while the sum is 44.

The spelling of 25526500487 in words is "twenty-five billion, five hundred twenty-six million, five hundred thousand, four hundred eighty-seven".