1020525920 has 24 divisors (see below), whose sum is σ = 2410992864. Its totient is φ = 408210304.

The previous prime is 1020525889. The next prime is 1020525941. The reversal of 1020525920 is 295250201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020525920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3188984 + ... + 3189303.

It is an arithmetic number, because the mean of its divisors is an integer number (100458036).

Almost surely, 2^1020525920 is an apocalyptic number.

1020525920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020525920 is an abundant number, since it is smaller than the sum of its proper divisors (1390466944).

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

1020525920 is an equidigital number, since it uses as much as digits as its factorization.

1020525920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378302 (or 6378294 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1020525920 is about 31945.6713812685. The cubic root of 1020525920 is about 1006.7956873553.

The spelling of 1020525920 in words is "one billion, twenty million, five hundred twenty-five thousand, nine hundred twenty".