425916431 has 2 divisors, whose sum is σ = 425916432. Its totient is φ = 425916430.

The previous prime is 425916373. The next prime is 425916443. The reversal of 425916431 is 134619524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425916431 - 2¹⁴ = 425900047 is a prime.

It is a super-2 number, since 2×425916431² = 362809612391555522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425916391 and 425916400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425916451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212958215 + 212958216.

It is an arithmetic number, because the mean of its divisors is an integer number (212958216).

Almost surely, 2^425916431 is an apocalyptic number.

425916431 is a deficient number, since it is larger than the sum of its proper divisors (1).

425916431 is an equidigital number, since it uses as much as digits as its factorization.

425916431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 425916431 is about 20637.7428756151. The cubic root of 425916431 is about 752.3873149809.

The spelling of 425916431 in words is "four hundred twenty-five million, nine hundred sixteen thousand, four hundred thirty-one".