1025442503 has 2 divisors, whose sum is σ = 1025442504. Its totient is φ = 1025442502.

The previous prime is 1025442469. The next prime is 1025442541. The reversal of 1025442503 is 3052445201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025442503 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025444503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512721251 + 512721252.

It is an arithmetic number, because the mean of its divisors is an integer number (512721252).

Almost surely, 2^1025442503 is an apocalyptic number.

1025442503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025442503 is an equidigital number, since it uses as much as digits as its factorization.

1025442503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1025442503 is about 32022.5311772820. The cubic root of 1025442503 is about 1008.4099094877.

Adding to 1025442503 its reverse (3052445201), we get a palindrome (4077887704).

The spelling of 1025442503 in words is "one billion, twenty-five million, four hundred forty-two thousand, five hundred three".