68286253 has 24 divisors (see below), whose sum is σ = 82080000. Its totient is φ = 56615328.

The previous prime is 68286233. The next prime is 68286269. The reversal of 68286253 is 35268286.

It is not a de Polignac number, because 68286253 - 2¹⁷ = 68155181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68286233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343048 + ... + 343246.

It is an arithmetic number, because the mean of its divisors is an integer number (3420000).

Almost surely, 2^68286253 is an apocalyptic number.

It is an amenable number.

68286253 is a deficient number, since it is larger than the sum of its proper divisors (13793747).

68286253 is a wasteful number, since it uses less digits than its factorization.

68286253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 402 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 68286253 is about 8263.5496610113. The cubic root of 68286253 is about 408.7374466432.

The spelling of 68286253 in words is "sixty-eight million, two hundred eighty-six thousand, two hundred fifty-three".