1525305616 has 40 divisors (see below), whose sum is σ = 3040992864. Its totient is φ = 740701440.

The previous prime is 1525305611. The next prime is 1525305631. The reversal of 1525305616 is 6165035251.

It is a super-2 number, since 2×1525305616² = 4653114444402278912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1525305611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143791 + ... + 154033.

Almost surely, 2^1525305616 is an apocalyptic number.

1525305616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1525305616 is a deficient number, since it is larger than the sum of its proper divisors (1515687248).

1525305616 is a wasteful number, since it uses less digits than its factorization.

1525305616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10519 (or 10513 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1525305616 is about 39055.1611954169. The cubic root of 1525305616 is about 1151.1156447444.

The spelling of 1525305616 in words is "one billion, five hundred twenty-five million, three hundred five thousand, six hundred sixteen".