53668011 has 4 divisors (see below), whose sum is σ = 71557352. Its totient is φ = 35778672.

The previous prime is 53668007. The next prime is 53668033. The reversal of 53668011 is 11086635.

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

It is not a de Polignac number, because 53668011 - 2² = 53668007 is a prime.

It is a super-2 number, since 2×53668011² = 5760510809392242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53668011.

It is not an unprimeable number, because it can be changed into a prime (53668001) 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, 8944666 + ... + 8944671.

It is an arithmetic number, because the mean of its divisors is an integer number (17889338).

Almost surely, 2^53668011 is an apocalyptic number.

53668011 is a deficient number, since it is larger than the sum of its proper divisors (17889341).

53668011 is a wasteful number, since it uses less digits than its factorization.

53668011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17889340.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 53668011 is about 7325.8454119644. The cubic root of 53668011 is about 377.2001296787.

The spelling of 53668011 in words is "fifty-three million, six hundred sixty-eight thousand, eleven".