68192553 has 32 divisors (see below), whose sum is σ = 109452672. Its totient is φ = 37209600.

The previous prime is 68192549. The next prime is 68192561. The reversal of 68192553 is 35529186.

It is not a de Polignac number, because 68192553 - 2² = 68192549 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (68192573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15651 + ... + 19527.

It is an arithmetic number, because the mean of its divisors is an integer number (3420396).

Almost surely, 2^68192553 is an apocalyptic number.

It is an amenable number.

68192553 is a deficient number, since it is larger than the sum of its proper divisors (41260119).

68192553 is a wasteful number, since it uses less digits than its factorization.

68192553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945.

The product of its digits is 64800, while the sum is 39.

The square root of 68192553 is about 8257.8782383855. The cubic root of 68192553 is about 408.5504093416.

The spelling of 68192553 in words is "sixty-eight million, one hundred ninety-two thousand, five hundred fifty-three".