1025541424520 has 16 divisors (see below), whose sum is σ = 2307468205260. Its totient is φ = 410216569792.

The previous prime is 1025541424511. The next prime is 1025541424541. The reversal of 1025541424520 is 254241455201.

It can be written as a sum of positive squares in 2 ways, for example, as 990968484676 + 34572939844 = 995474^2 + 185938^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 12819267767 + ... + 12819267846.

Almost surely, 2^{1025541424520} is an apocalyptic number.

1025541424520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025541424520 is an abundant number, since it is smaller than the sum of its proper divisors (1281926780740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025541424520 is a wasteful number, since it uses less digits than its factorization.

1025541424520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25638535624 (or 25638535620 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 1025541424520 its reverse (254241455201), we get a palindrome (1279782879721).

The spelling of 1025541424520 in words is "one trillion, twenty-five billion, five hundred forty-one million, four hundred twenty-four thousand, five hundred twenty".