68557532 has 12 divisors (see below), whose sum is σ = 127033200. Its totient is φ = 32262336.

The previous prime is 68557507. The next prime is 68557553. The reversal of 68557532 is 23575586.

It is a self number, because there is not a number n which added to its sum of digits gives 68557532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504032 + ... + 504167.

It is an arithmetic number, because the mean of its divisors is an integer number (10586100).

Almost surely, 2^68557532 is an apocalyptic number.

It is an amenable number.

68557532 is a deficient number, since it is larger than the sum of its proper divisors (58475668).

68557532 is a wasteful number, since it uses less digits than its factorization.

68557532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008220 (or 1008218 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The square root of 68557532 is about 8279.9475843752. The cubic root of 68557532 is about 409.2779916363.

The spelling of 68557532 in words is "sixty-eight million, five hundred fifty-seven thousand, five hundred thirty-two".