425995931 has 4 divisors (see below), whose sum is σ = 426042864. Its totient is φ = 425949000.

The previous prime is 425995909. The next prime is 425995937. The reversal of 425995931 is 139599524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425995931 is a prime.

It is a super-2 number, since 2×425995931² = 362945066457113522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425995937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5015 + ... + 29616.

It is an arithmetic number, because the mean of its divisors is an integer number (106510716).

Almost surely, 2^425995931 is an apocalyptic number.

425995931 is a deficient number, since it is larger than the sum of its proper divisors (46933).

425995931 is a wasteful number, since it uses less digits than its factorization.

425995931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46932.

The product of its digits is 437400, while the sum is 47.

The square root of 425995931 is about 20639.6688684678. The cubic root of 425995931 is about 752.4341246881.

The spelling of 425995931 in words is "four hundred twenty-five million, nine hundred ninety-five thousand, nine hundred thirty-one".