1025425847 has 2 divisors, whose sum is σ = 1025425848. Its totient is φ = 1025425846.

The previous prime is 1025425783. The next prime is 1025425883. The reversal of 1025425847 is 7485245201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025425847 - 2⁶ = 1025425783 is a prime.

It is a super-3 number, since 3×1025425847³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1025425847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025415847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512712923 + 512712924.

It is an arithmetic number, because the mean of its divisors is an integer number (512712924).

Almost surely, 2^1025425847 is an apocalyptic number.

1025425847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025425847 is an equidigital number, since it uses as much as digits as its factorization.

1025425847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 1025425847 is about 32022.2711093389. The cubic root of 1025425847 is about 1008.4044496768.

The spelling of 1025425847 in words is "one billion, twenty-five million, four hundred twenty-five thousand, eight hundred forty-seven".