25502500007 has 2 divisors, whose sum is σ = 25502500008. Its totient is φ = 25502500006.

The previous prime is 25502499991. The next prime is 25502500069. The reversal of 25502500007 is 70000520552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25502500007 - 2⁴ = 25502499991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25502500087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12751250003 + 12751250004.

It is an arithmetic number, because the mean of its divisors is an integer number (12751250004).

Almost surely, 2^25502500007 is an apocalyptic number.

25502500007 is a deficient number, since it is larger than the sum of its proper divisors (1).

25502500007 is an equidigital number, since it uses as much as digits as its factorization.

25502500007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3500, while the sum is 26.

The spelling of 25502500007 in words is "twenty-five billion, five hundred two million, five hundred thousand, seven".