68307552 has 36 divisors (see below), whose sum is σ = 194250420. Its totient is φ = 22769088.

The previous prime is 68307529. The next prime is 68307559. The reversal of 68307552 is 25570386.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68307559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118302 + ... + 118877.

It is an arithmetic number, because the mean of its divisors is an integer number (5395845).

Almost surely, 2^68307552 is an apocalyptic number.

It is an amenable number.

68307552 is an abundant number, since it is smaller than the sum of its proper divisors (125942868).

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

68307552 is a wasteful number, since it uses less digits than its factorization.

68307552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237195 (or 237184 counting only the distinct ones).

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

The square root of 68307552 is about 8264.8382924290. The cubic root of 68307552 is about 408.7799383284.

The spelling of 68307552 in words is "sixty-eight million, three hundred seven thousand, five hundred fifty-two".