68040053 has 4 divisors (see below), whose sum is σ = 68293260. Its totient is φ = 67786848.

The previous prime is 68040047. The next prime is 68040059. The reversal of 68040053 is 35004086.

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

It is an interprime number because it is at equal distance from previous prime (68040047) and next prime (68040059).

It can be written as a sum of positive squares in 2 ways, for example, as 36881329 + 31158724 = 6073^2 + 5582^2 .

It is a cyclic number.

It is not a de Polignac number, because 68040053 - 2⁶ = 68039989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68040059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126200 + ... + 126737.

It is an arithmetic number, because the mean of its divisors is an integer number (17073315).

Almost surely, 2^68040053 is an apocalyptic number.

It is an amenable number.

68040053 is a deficient number, since it is larger than the sum of its proper divisors (253207).

68040053 is a wasteful number, since it uses less digits than its factorization.

68040053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253206.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 68040053 is about 8248.6394635722. The cubic root of 68040053 is about 408.2456329586.

The spelling of 68040053 in words is "sixty-eight million, forty thousand, fifty-three".