7725957101 has 2 divisors, whose sum is σ = 7725957102. Its totient is φ = 7725957100.

The previous prime is 7725957091. The next prime is 7725957133. The reversal of 7725957101 is 1017595277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4112143876 + 3613813225 = 64126^2 + 60115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7725957101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7725957191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3862978550 + 3862978551.

It is an arithmetic number, because the mean of its divisors is an integer number (3862978551).

Almost surely, 2^7725957101 is an apocalyptic number.

It is an amenable number.

7725957101 is a deficient number, since it is larger than the sum of its proper divisors (1).

7725957101 is an equidigital number, since it uses as much as digits as its factorization.

7725957101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 154350, while the sum is 44.

The square root of 7725957101 is about 87897.4237449540. The cubic root of 7725957101 is about 1976.8972508059.

The spelling of 7725957101 in words is "seven billion, seven hundred twenty-five million, nine hundred fifty-seven thousand, one hundred one".