1982968525 has 12 divisors (see below), whose sum is σ = 2543670900. Its totient is φ = 1531671680.

The previous prime is 1982968501. The next prime is 1982968543. The reversal of 1982968525 is 5258692891.

It can be written as a sum of positive squares in 6 ways, for example, as 83229129 + 1899739396 = 9123^2 + 43586^2 .

It is not a de Polignac number, because 1982968525 - 2¹⁷ = 1982837453 is a prime.

It is a super-2 number, since 2×1982968525² = 7864328342281351250, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1366840 + ... + 1368289.

It is an arithmetic number, because the mean of its divisors is an integer number (211972575).

Almost surely, 2^1982968525 is an apocalyptic number.

It is an amenable number.

1982968525 is a deficient number, since it is larger than the sum of its proper divisors (560702375).

1982968525 is a wasteful number, since it uses less digits than its factorization.

1982968525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735168 (or 2735163 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 55.

The square root of 1982968525 is about 44530.5347486419. The cubic root of 1982968525 is about 1256.3344640948.

The spelling of 1982968525 in words is "one billion, nine hundred eighty-two million, nine hundred sixty-eight thousand, five hundred twenty-five".