68613552 has 120 divisors (see below), whose sum is σ = 224699904. Its totient is φ = 19135872.

The previous prime is 68613539. The next prime is 68613563. The reversal of 68613552 is 25531686.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

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 23 ways as a sum of consecutive naturals, for example, 42553 + ... + 44135.

Almost surely, 2^68613552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68613552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112349952).

68613552 is an abundant number, since it is smaller than the sum of its proper divisors (156086352).

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

68613552 is a wasteful number, since it uses less digits than its factorization.

68613552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1638 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 68613552 is about 8283.3297652574. The cubic root of 68613552 is about 409.3894382337.

The spelling of 68613552 in words is "sixty-eight million, six hundred thirteen thousand, five hundred fifty-two".