25028026531 has 2 divisors, whose sum is σ = 25028026532. Its totient is φ = 25028026530.

The previous prime is 25028026519. The next prime is 25028026553. The reversal of 25028026531 is 13562082052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25028026531 - 2¹³ = 25028018339 is a prime.

It is a super-2 number, since 2×25028026531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25028026561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12514013265 + 12514013266.

It is an arithmetic number, because the mean of its divisors is an integer number (12514013266).

Almost surely, 2^25028026531 is an apocalyptic number.

25028026531 is a deficient number, since it is larger than the sum of its proper divisors (1).

25028026531 is an equidigital number, since it uses as much as digits as its factorization.

25028026531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 25028026531 in words is "twenty-five billion, twenty-eight million, twenty-six thousand, five hundred thirty-one".