1025225387 has 2 divisors, whose sum is σ = 1025225388. Its totient is φ = 1025225386.

The previous prime is 1025225347. The next prime is 1025225431. The reversal of 1025225387 is 7835225201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1025225387 - 2¹⁸ = 1024963243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1025225317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512612693 + 512612694.

It is an arithmetic number, because the mean of its divisors is an integer number (512612694).

Almost surely, 2^1025225387 is an apocalyptic number.

1025225387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025225387 is an equidigital number, since it uses as much as digits as its factorization.

1025225387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 1025225387 is about 32019.1409472522. The cubic root of 1025225387 is about 1008.3387345627.

The spelling of 1025225387 in words is "one billion, twenty-five million, two hundred twenty-five thousand, three hundred eighty-seven".