1530125520 has 160 divisors (see below), whose sum is σ = 5913907200. Its totient is φ = 317944320.

The previous prime is 1530125503. The next prime is 1530125549. The reversal of 1530125520 is 255210351.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22920 + ... + 59879.

It is an arithmetic number, because the mean of its divisors is an integer number (36961920).

Almost surely, 2^1530125520 is an apocalyptic number.

1530125520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530125520 is an abundant number, since it is smaller than the sum of its proper divisors (4383781680).

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

1530125520 is a wasteful number, since it uses less digits than its factorization.

1530125520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82833 (or 82827 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1530125520 is about 39116.8188890661. The cubic root of 1530125520 is about 1152.3268627851.

Adding to 1530125520 its reverse (255210351), we get a palindrome (1785335871).

The spelling of 1530125520 in words is "one billion, five hundred thirty million, one hundred twenty-five thousand, five hundred twenty".