68267550 has 72 divisors (see below), whose sum is σ = 183396744. Its totient is φ = 16798080.

The previous prime is 68267527. The next prime is 68267561. The reversal of 68267550 is 5576286.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 68267499 and 68267508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24004 + ... + 26696.

It is an arithmetic number, because the mean of its divisors is an integer number (2547177).

Almost surely, 2^68267550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68267550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91698372).

68267550 is an abundant number, since it is smaller than the sum of its proper divisors (115129194).

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

68267550 is a wasteful number, since it uses less digits than its factorization.

68267550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 68267550 is about 8262.4179269751. The cubic root of 68267550 is about 408.7001267134.

The spelling of 68267550 in words is "sixty-eight million, two hundred sixty-seven thousand, five hundred fifty".