425131216 has 10 divisors (see below), whose sum is σ = 823691762. Its totient is φ = 212565600.

The previous prime is 425131207. The next prime is 425131219. The reversal of 425131216 is 612131524.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 218921616 + 206209600 = 14796^2 + 14360^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425131219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13285335 + ... + 13285366.

Almost surely, 2^425131216 is an apocalyptic number.

It is an amenable number.

425131216 is a deficient number, since it is larger than the sum of its proper divisors (398560546).

425131216 is a wasteful number, since it uses less digits than its factorization.

425131216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26570709 (or 26570703 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 425131216 is about 20618.7103379431. The cubic root of 425131216 is about 751.9246661369.

The spelling of 425131216 in words is "four hundred twenty-five million, one hundred thirty-one thousand, two hundred sixteen".