1020025427 has 2 divisors, whose sum is σ = 1020025428. Its totient is φ = 1020025426.

The previous prime is 1020025397. The next prime is 1020025463. The reversal of 1020025427 is 7245200201.

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-1020025427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020025627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510012713 + 510012714.

It is an arithmetic number, because the mean of its divisors is an integer number (510012714).

Almost surely, 2^1020025427 is an apocalyptic number.

1020025427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020025427 is an equidigital number, since it uses as much as digits as its factorization.

1020025427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1020025427 is about 31937.8369179880. The cubic root of 1020025427 is about 1006.6310739990.

Adding to 1020025427 its reverse (7245200201), we get a palindrome (8265225628).

The spelling of 1020025427 in words is "one billion, twenty million, twenty-five thousand, four hundred twenty-seven".