68990425 has 24 divisors (see below), whose sum is σ = 102920000. Its totient is φ = 44815680.

The previous prime is 68990419. The next prime is 68990431. The reversal of 68990425 is 52409986.

It is an interprime number because it is at equal distance from previous prime (68990419) and next prime (68990431).

It is not a de Polignac number, because 68990425 - 2⁵ = 68990393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7050 + ... + 13699.

Almost surely, 2^68990425 is an apocalyptic number.

It is an amenable number.

68990425 is a deficient number, since it is larger than the sum of its proper divisors (33929575).

68990425 is a wasteful number, since it uses less digits than its factorization.

68990425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20785 (or 20780 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 68990425 is about 8306.0474956504. The cubic root of 68990425 is about 410.1376198734.

The spelling of 68990425 in words is "sixty-eight million, nine hundred ninety thousand, four hundred twenty-five".