1667674525 has 24 divisors (see below), whose sum is σ = 2269479744. Its totient is φ = 1205558400.

The previous prime is 1667674523. The next prime is 1667674531. The reversal of 1667674525 is 5254767661.

It is not a de Polignac number, because 1667674525 - 2¹ = 1667674523 is a prime.

It is a super-2 number, since 2×1667674525² = 5562276642667951250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1667674523) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 27769 + ... + 64081.

It is an arithmetic number, because the mean of its divisors is an integer number (94561656).

Almost surely, 2^1667674525 is an apocalyptic number.

It is an amenable number.

1667674525 is a deficient number, since it is larger than the sum of its proper divisors (601805219).

1667674525 is a wasteful number, since it uses less digits than its factorization.

1667674525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36501 (or 36496 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 49.

The square root of 1667674525 is about 40837.1708740946. The cubic root of 1667674525 is about 1185.8700429765.

The spelling of 1667674525 in words is "one billion, six hundred sixty-seven million, six hundred seventy-four thousand, five hundred twenty-five".