1010006520 has 32 divisors (see below), whose sum is σ = 3030019920. Its totient is φ = 269335040.

The previous prime is 1010006497. The next prime is 1010006537. The reversal of 1010006520 is 256000101.

It is a super-2 number, since 2×1010006520² = 2040226340885020800, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1010006520.

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, 4208241 + ... + 4208480.

Almost surely, 2^1010006520 is an apocalyptic number.

1010006520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010006520 is an abundant number, since it is smaller than the sum of its proper divisors (2020013400).

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

1010006520 is a wasteful number, since it uses less digits than its factorization.

1010006520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8416735 (or 8416731 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1010006520 is about 31780.5997426103. The cubic root of 1010006520 is about 1003.3244425016.

Adding to 1010006520 its reverse (256000101), we get a palindrome (1266006621).

The spelling of 1010006520 in words is "one billion, ten million, six thousand, five hundred twenty".