53787668 has 24 divisors (see below), whose sum is σ = 105077280. Its totient is φ = 23879520.

The previous prime is 53787649. The next prime is 53787673. The reversal of 53787668 is 86678735.

It is a super-2 number, since 2×53787668² = 5786226457756448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12323 + ... + 16106.

It is an arithmetic number, because the mean of its divisors is an integer number (4378220).

Almost surely, 2^53787668 is an apocalyptic number.

It is an amenable number.

53787668 is a deficient number, since it is larger than the sum of its proper divisors (51289612).

53787668 is a wasteful number, since it uses less digits than its factorization.

53787668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28487 (or 28485 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 53787668 is about 7334.0076356655. The cubic root of 53787668 is about 377.4802539267.

The spelling of 53787668 in words is "fifty-three million, seven hundred eighty-seven thousand, six hundred sixty-eight".