53995667 has 4 divisors (see below), whose sum is σ = 58904376. Its totient is φ = 49086960.

The previous prime is 53995661. The next prime is 53995687. The reversal of 53995667 is 76659935.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53995667 - 2⁶ = 53995603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53995661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2454338 + ... + 2454359.

It is an arithmetic number, because the mean of its divisors is an integer number (14726094).

Almost surely, 2^53995667 is an apocalyptic number.

53995667 is a deficient number, since it is larger than the sum of its proper divisors (4908709).

53995667 is a wasteful number, since it uses less digits than its factorization.

53995667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908708.

The product of its digits is 1530900, while the sum is 50.

The square root of 53995667 is about 7348.1743991280. The cubic root of 53995667 is about 377.9662049982.

The spelling of 53995667 in words is "fifty-three million, nine hundred ninety-five thousand, six hundred sixty-seven".