68945425 has 6 divisors (see below), whose sum is σ = 85492358. Its totient is φ = 55156320.

The previous prime is 68945423. The next prime is 68945447. The reversal of 68945425 is 52454986.

It can be written as a sum of positive squares in 3 ways, for example, as 767376 + 68178049 = 876^2 + 8257^2 .

It is not a de Polignac number, because 68945425 - 2¹ = 68945423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68945423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1378884 + ... + 1378933.

Almost surely, 2^68945425 is an apocalyptic number.

It is an amenable number.

68945425 is a deficient number, since it is larger than the sum of its proper divisors (16546933).

68945425 is a wasteful number, since it uses less digits than its factorization.

68945425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757827 (or 2757822 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 68945425 is about 8303.3381841281. The cubic root of 68945425 is about 410.0484277518.

The spelling of 68945425 in words is "sixty-eight million, nine hundred forty-five thousand, four hundred twenty-five".