1025509907 has 2 divisors, whose sum is σ = 1025509908. Its totient is φ = 1025509906.

The previous prime is 1025509889. The next prime is 1025509931. The reversal of 1025509907 is 7099055201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1025509907 - 2⁶ = 1025509843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1025509987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512754953 + 512754954.

It is an arithmetic number, because the mean of its divisors is an integer number (512754954).

Almost surely, 2^1025509907 is an apocalyptic number.

1025509907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025509907 is an equidigital number, since it uses as much as digits as its factorization.

1025509907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 1025509907 is about 32023.5836064610. The cubic root of 1025509907 is about 1008.4320038103.

The spelling of 1025509907 in words is "one billion, twenty-five million, five hundred nine thousand, nine hundred seven".