25752554987 has 2 divisors, whose sum is σ = 25752554988. Its totient is φ = 25752554986.

The previous prime is 25752554957. The next prime is 25752555019. The reversal of 25752554987 is 78945525752.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25752554987 - 2²² = 25748360683 is a prime.

It is not a weakly prime, because it can be changed into another prime (25752554917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12876277493 + 12876277494.

It is an arithmetic number, because the mean of its divisors is an integer number (12876277494).

Almost surely, 2^25752554987 is an apocalyptic number.

25752554987 is a deficient number, since it is larger than the sum of its proper divisors (1).

25752554987 is an equidigital number, since it uses as much as digits as its factorization.

25752554987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280000, while the sum is 59.

The spelling of 25752554987 in words is "twenty-five billion, seven hundred fifty-two million, five hundred fifty-four thousand, nine hundred eighty-seven".