68103555 has 32 divisors (see below), whose sum is σ = 119024640. Its totient is φ = 33048960.

The previous prime is 68103551. The next prime is 68103589. The reversal of 68103555 is 55530186.

It is not a de Polignac number, because 68103555 - 2² = 68103551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68103551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11386 + ... + 16304.

It is an arithmetic number, because the mean of its divisors is an integer number (3719520).

Almost surely, 2^68103555 is an apocalyptic number.

68103555 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68103555 is a deficient number, since it is larger than the sum of its proper divisors (50921085).

68103555 is a wasteful number, since it uses less digits than its factorization.

68103555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 68103555 is about 8252.4878067162. The cubic root of 68103555 is about 408.3725991210.

It can be divided in two parts, 68103 and 555, that multiplied together give a triangular number (37797165 = T₈₆₉₄).

The spelling of 68103555 in words is "sixty-eight million, one hundred three thousand, five hundred fifty-five".