68621252 has 12 divisors (see below), whose sum is σ = 137242560. Its totient is φ = 29409096.

The previous prime is 68621237. The next prime is 68621257. The reversal of 68621252 is 25212686.

68621252 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (68621257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225352 + ... + 1225407.

It is an arithmetic number, because the mean of its divisors is an integer number (11436880).

Almost surely, 2^68621252 is an apocalyptic number.

It is an amenable number.

68621252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68621252 is a wasteful number, since it uses less digits than its factorization.

68621252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450770 (or 2450768 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 68621252 is about 8283.7945411508. The cubic root of 68621252 is about 409.4047519274.

The spelling of 68621252 in words is "sixty-eight million, six hundred twenty-one thousand, two hundred fifty-two".