68438053 has 4 divisors (see below), whose sum is σ = 69598080. Its totient is φ = 67278028.

The previous prime is 68438017. The next prime is 68438077. The reversal of 68438053 is 35083486.

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 68438053 - 2⁹ = 68437541 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 (68438093) 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, 579925 + ... + 580042.

It is an arithmetic number, because the mean of its divisors is an integer number (17399520).

Almost surely, 2^68438053 is an apocalyptic number.

It is an amenable number.

68438053 is a deficient number, since it is larger than the sum of its proper divisors (1160027).

68438053 is a wasteful number, since it uses less digits than its factorization.

68438053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160026.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 68438053 is about 8272.7294770227. The cubic root of 68438053 is about 409.0400962597.

The spelling of 68438053 in words is "sixty-eight million, four hundred thirty-eight thousand, fifty-three".