1025081524 has 6 divisors (see below), whose sum is σ = 1793892674. Its totient is φ = 512540760.

The previous prime is 1025081489. The next prime is 1025081543. The reversal of 1025081524 is 4251805201.

It can be written as a sum of positive squares in only one way, i.e., 1019652624 + 5428900 = 31932^2 + 2330^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1025081492 and 1025081501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128135187 + ... + 128135194.

Almost surely, 2^1025081524 is an apocalyptic number.

It is an amenable number.

1025081524 is a deficient number, since it is larger than the sum of its proper divisors (768811150).

1025081524 is a wasteful number, since it uses less digits than its factorization.

1025081524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256270385 (or 256270383 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 1025081524 is about 32016.8943528257. The cubic root of 1025081524 is about 1008.2915678866.

Adding to 1025081524 its reverse (4251805201), we get a palindrome (5276886725).

The spelling of 1025081524 in words is "one billion, twenty-five million, eighty-one thousand, five hundred twenty-four".