68230557 has 24 divisors (see below), whose sum is σ = 100956024. Its totient is φ = 44388864.

The previous prime is 68230543. The next prime is 68230559. The reversal of 68230557 is 75503286.

It can be written as a sum of positive squares in 4 ways, for example, as 8415801 + 59814756 = 2901^2 + 7734^2 .

It is not a de Polignac number, because 68230557 - 2⁴ = 68230541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68230559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149073 + ... + 149529.

It is an arithmetic number, because the mean of its divisors is an integer number (4206501).

Almost surely, 2^68230557 is an apocalyptic number.

It is an amenable number.

68230557 is a deficient number, since it is larger than the sum of its proper divisors (32725467).

68230557 is a wasteful number, since it uses less digits than its factorization.

68230557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 68230557 is about 8260.1789932180. The cubic root of 68230557 is about 408.6262908742.

The spelling of 68230557 in words is "sixty-eight million, two hundred thirty thousand, five hundred fifty-seven".