68631225 has 48 divisors (see below), whose sum is σ = 125116992. Its totient is φ = 32981760.

The previous prime is 68631223. The next prime is 68631247. The reversal of 68631225 is 52213686.

It is not a de Polignac number, because 68631225 - 2¹ = 68631223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68631221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41107 + ... + 42743.

It is an arithmetic number, because the mean of its divisors is an integer number (2606604).

Almost surely, 2^68631225 is an apocalyptic number.

68631225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68631225 is a deficient number, since it is larger than the sum of its proper divisors (56485767).

68631225 is a wasteful number, since it uses less digits than its factorization.

68631225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1701 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 68631225 is about 8284.3964777164. The cubic root of 68631225 is about 409.4245844413.

The spelling of 68631225 in words is "sixty-eight million, six hundred thirty-one thousand, two hundred twenty-five".