1025987520 has 224 divisors, whose sum is σ = 3407054400. Its totient is φ = 261259264.

The previous prime is 1025987513. The next prime is 1025987531. The reversal of 1025987520 is 257895201.

1025987520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3813946 + ... + 3814214.

Almost surely, 2^1025987520 is an apocalyptic number.

1025987520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025987520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1703527200).

1025987520 is an abundant number, since it is smaller than the sum of its proper divisors (2381066880).

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

1025987520 is a wasteful number, since it uses less digits than its factorization.

1025987520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 1025987520 is about 32031.0399456527. The cubic root of 1025987520 is about 1008.5885326027.

It can be divided in two parts, 10259 and 87520, that added together give a palindrome (97779).

The spelling of 1025987520 in words is "one billion, twenty-five million, nine hundred eighty-seven thousand, five hundred twenty".