1025225431 has 2 divisors, whose sum is σ = 1025225432. Its totient is φ = 1025225430.

The previous prime is 1025225387. The next prime is 1025225441. The reversal of 1025225431 is 1345225201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1025225431 - 2¹¹ = 1025223383 is a prime.

It is a super-2 number, since 2×1025225431² = 2102174368738271522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1025225396 and 1025225405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025225441) 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, 512612715 + 512612716.

It is an arithmetic number, because the mean of its divisors is an integer number (512612716).

Almost surely, 2^1025225431 is an apocalyptic number.

1025225431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025225431 is an equidigital number, since it uses as much as digits as its factorization.

1025225431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1025225431 is about 32019.1416343412. The cubic root of 1025225431 is about 1008.3387489878.

The spelling of 1025225431 in words is "one billion, twenty-five million, two hundred twenty-five thousand, four hundred thirty-one".