68246553 has 4 divisors (see below), whose sum is σ = 90995408. Its totient is φ = 45497700.

The previous prime is 68246533. The next prime is 68246561. The reversal of 68246553 is 35564286.

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 not a de Polignac number, because 68246553 - 2⁶ = 68246489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68246533) 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, 11374423 + ... + 11374428.

It is an arithmetic number, because the mean of its divisors is an integer number (22748852).

Almost surely, 2^68246553 is an apocalyptic number.

It is an amenable number.

68246553 is a deficient number, since it is larger than the sum of its proper divisors (22748855).

68246553 is a wasteful number, since it uses less digits than its factorization.

68246553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22748854.

The product of its digits is 172800, while the sum is 39.

The square root of 68246553 is about 8261.1471963644. The cubic root of 68246553 is about 408.6582212180.

The spelling of 68246553 in words is "sixty-eight million, two hundred forty-six thousand, five hundred fifty-three".