10515020 has 24 divisors (see below), whose sum is σ = 22171968. Its totient is φ = 4188800.

The previous prime is 10515017. The next prime is 10515031. The reversal of 10515020 is 2051501.

It is a super-2 number, since 2×10515020² = 221131291200800, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 10514986 and 10515004.

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, 4685 + ... + 6555.

It is an arithmetic number, because the mean of its divisors is an integer number (923832).

Almost surely, 2^10515020 is an apocalyptic number.

10515020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10515020 is an abundant number, since it is smaller than the sum of its proper divisors (11656948).

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

10515020 is a wasteful number, since it uses less digits than its factorization.

10515020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 10515020 is about 3242.6871572818. The cubic root of 10515020 is about 219.0803205446.

Adding to 10515020 its reverse (2051501), we get a palindrome (12566521).

The spelling of 10515020 in words is "ten million, five hundred fifteen thousand, twenty".