68612550 has 48 divisors (see below), whose sum is σ = 176037840. Its totient is φ = 17664640.

The previous prime is 68612549. The next prime is 68612569. The reversal of 68612550 is 5521686.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 3537 + ... + 12236.

It is an arithmetic number, because the mean of its divisors is an integer number (3667455).

Almost surely, 2^68612550 is an apocalyptic number.

68612550 is an abundant number, since it is smaller than the sum of its proper divisors (107425290).

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

68612550 is a wasteful number, since it uses less digits than its factorization.

68612550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15817 (or 15812 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 68612550 is about 8283.2692821132. The cubic root of 68612550 is about 409.3874453804.

The spelling of 68612550 in words is "sixty-eight million, six hundred twelve thousand, five hundred fifty".