1025021514404 has 6 divisors (see below), whose sum is σ = 1793787650214. Its totient is φ = 512510757200.

The previous prime is 1025021514373. The next prime is 1025021514443. The reversal of 1025021514404 is 4044151205201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 972397154404 + 52624360000 = 986102^2 + 229400^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128127689297 + ... + 128127689304.

It is an arithmetic number, because the mean of its divisors is an integer number (298964608369).

Almost surely, 2^{1025021514404} is an apocalyptic number.

It is an amenable number.

1025021514404 is a deficient number, since it is larger than the sum of its proper divisors (768766135810).

1025021514404 is a wasteful number, since it uses less digits than its factorization.

1025021514404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256255378605 (or 256255378603 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 1025021514404 its reverse (4044151205201), we get a palindrome (5069172719605).

The spelling of 1025021514404 in words is "one trillion, twenty-five billion, twenty-one million, five hundred fourteen thousand, four hundred four".