1525520612 has 24 divisors (see below), whose sum is σ = 3328409280. Its totient is φ = 594358560.

The previous prime is 1525520597. The next prime is 1525520627. The reversal of 1525520612 is 2160255251.

It is an interprime number because it is at equal distance from previous prime (1525520597) and next prime (1525520627).

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 7 ways as a sum of consecutive naturals, for example, 2476187 + ... + 2476802.

It is an arithmetic number, because the mean of its divisors is an integer number (138683720).

Almost surely, 2^1525520612 is an apocalyptic number.

It is an amenable number.

1525520612 is an abundant number, since it is smaller than the sum of its proper divisors (1802888668).

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

1525520612 is a wasteful number, since it uses less digits than its factorization.

1525520612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953011 (or 4953009 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1525520612 is about 39057.9135643470. The cubic root of 1525520612 is about 1151.1697265034.

Adding to 1525520612 its reverse (2160255251), we get a palindrome (3685775863).

The spelling of 1525520612 in words is "one billion, five hundred twenty-five million, five hundred twenty thousand, six hundred twelve".