68107553 has 4 divisors (see below), whose sum is σ = 68313648. Its totient is φ = 67901460.

The previous prime is 68107549. The next prime is 68107561. The reversal of 68107553 is 35570186.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68107553 - 2² = 68107549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68107513) 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, 102551 + ... + 103212.

It is an arithmetic number, because the mean of its divisors is an integer number (17078412).

Almost surely, 2^68107553 is an apocalyptic number.

It is an amenable number.

68107553 is a deficient number, since it is larger than the sum of its proper divisors (206095).

68107553 is a wasteful number, since it uses less digits than its factorization.

68107553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206094.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 68107553 is about 8252.7300331466. The cubic root of 68107553 is about 408.3805900974.

The spelling of 68107553 in words is "sixty-eight million, one hundred seven thousand, five hundred fifty-three".