10520520 has 32 divisors (see below), whose sum is σ = 31561920. Its totient is φ = 2805440.

The previous prime is 10520507. The next prime is 10520537. The reversal of 10520520 is 2502501.

It is a super-2 number, since 2×10520520² = 221362682140800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 10520520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43716 + ... + 43955.

It is an arithmetic number, because the mean of its divisors is an integer number (986310).

Almost surely, 2^10520520 is an apocalyptic number.

10520520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10520520 is an abundant number, since it is smaller than the sum of its proper divisors (21041400).

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

10520520 is a wasteful number, since it uses less digits than its factorization.

10520520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87685 (or 87681 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 10520520 is about 3243.5351084889. The cubic root of 10520520 is about 219.1185113655.

The spelling of 10520520 in words is "ten million, five hundred twenty thousand, five hundred twenty".