1025433531 has 24 divisors (see below), whose sum is σ = 1532304384. Its totient is φ = 660124080.

The previous prime is 1025433517. The next prime is 1025433571. The reversal of 1025433531 is 1353345201.

It is not a de Polignac number, because 1025433531 - 2⁵ = 1025433499 is a prime.

It is a super-2 number, since 2×1025433531² = 2103027852998255922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1025433495 and 1025433504.

It is not an unprimeable number, because it can be changed into a prime (1025433571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132100 + ... + 139646.

It is an arithmetic number, because the mean of its divisors is an integer number (63846016).

Almost surely, 2^1025433531 is an apocalyptic number.

1025433531 is a deficient number, since it is larger than the sum of its proper divisors (506870853).

1025433531 is a wasteful number, since it uses less digits than its factorization.

1025433531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8071 (or 8068 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1025433531 is about 32022.3910881121. The cubic root of 1025433531 is about 1008.4069684874.

Adding to 1025433531 its reverse (1353345201), we get a palindrome (2378778732).

The spelling of 1025433531 in words is "one billion, twenty-five million, four hundred thirty-three thousand, five hundred thirty-one".