1520000520 has 32 divisors (see below), whose sum is σ = 4560001920. Its totient is φ = 405333440.

The previous prime is 1520000509. The next prime is 1520000569. The reversal of 1520000520 is 250000251.

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 1520000520.

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, 6333216 + ... + 6333455.

It is an arithmetic number, because the mean of its divisors is an integer number (142500060).

Almost surely, 2^1520000520 is an apocalyptic number.

1520000520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520000520 is an abundant number, since it is smaller than the sum of its proper divisors (3040001400).

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

1520000520 is a wasteful number, since it uses less digits than its factorization.

1520000520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12666685 (or 12666681 counting only the distinct ones).

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

The square root of 1520000520 is about 38987.1840480946. The cubic root of 1520000520 is about 1149.7795469041.

Adding to 1520000520 its reverse (250000251), we get a palindrome (1770000771).

The spelling of 1520000520 in words is "one billion, five hundred twenty million, five hundred twenty", and thus it is an aban number.