1025432531 has 2 divisors, whose sum is σ = 1025432532. Its totient is φ = 1025432530.

The previous prime is 1025432407. The next prime is 1025432563. The reversal of 1025432531 is 1352345201.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1352345201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025432531 is a prime.

It is a super-2 number, since 2×1025432531² = 2103023751266131922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1025432531.

It is not a weakly prime, because it can be changed into another prime (1025432581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512716265 + 512716266.

It is an arithmetic number, because the mean of its divisors is an integer number (512716266).

Almost surely, 2^1025432531 is an apocalyptic number.

1025432531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025432531 is an equidigital number, since it uses as much as digits as its factorization.

1025432531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1025432531 is about 32022.3754740338. The cubic root of 1025432531 is about 1008.4066406887.

Adding to 1025432531 its reverse (1352345201), we get a palindrome (2377777732).

The spelling of 1025432531 in words is "one billion, twenty-five million, four hundred thirty-two thousand, five hundred thirty-one".