1056025520 has 80 divisors (see below), whose sum is σ = 2743886880. Its totient is φ = 374630400.

The previous prime is 1056025511. The next prime is 1056025541. The reversal of 1056025520 is 255206501.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1056025520² = 2230379797782540800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056025520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21446 + ... + 50714.

It is an arithmetic number, because the mean of its divisors is an integer number (34298586).

Almost surely, 2^1056025520 is an apocalyptic number.

1056025520 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 1056025520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371943440).

1056025520 is an abundant number, since it is smaller than the sum of its proper divisors (1687861360).

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

1056025520 is a wasteful number, since it uses less digits than its factorization.

1056025520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29334 (or 29328 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1056025520 is about 32496.5462780278. The cubic root of 1056025520 is about 1018.3368770690.

The spelling of 1056025520 in words is "one billion, fifty-six million, twenty-five thousand, five hundred twenty".