68853530 has 24 divisors (see below), whose sum is σ = 130809492. Its totient is φ = 26090496.

The previous prime is 68853503. The next prime is 68853541. The reversal of 68853530 is 3535886.

It can be written as a sum of positive squares in 2 ways, for example, as 58049161 + 10804369 = 7619^2 + 3287^2 .

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5927 + ... + 13146.

Almost surely, 2^68853530 is an apocalyptic number.

68853530 is a deficient number, since it is larger than the sum of its proper divisors (61955962).

68853530 is a wasteful number, since it uses less digits than its factorization.

68853530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19118 (or 19099 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 68853530 is about 8297.8027212028. The cubic root of 68853530 is about 409.8661669076.

The spelling of 68853530 in words is "sixty-eight million, eight hundred fifty-three thousand, five hundred thirty".