425354431 has 2 divisors, whose sum is σ = 425354432. Its totient is φ = 425354430.

The previous prime is 425354417. The next prime is 425354471. The reversal of 425354431 is 134453524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425354431 - 2⁹ = 425353919 is a prime.

It is a super-2 number, since 2×425354431² = 361852783942667522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425354393 and 425354402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425354401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212677215 + 212677216.

It is an arithmetic number, because the mean of its divisors is an integer number (212677216).

Almost surely, 2^425354431 is an apocalyptic number.

425354431 is a deficient number, since it is larger than the sum of its proper divisors (1).

425354431 is an equidigital number, since it uses as much as digits as its factorization.

425354431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 31.

The square root of 425354431 is about 20624.1225510323. The cubic root of 425354431 is about 752.0562423747.

The spelling of 425354431 in words is "four hundred twenty-five million, three hundred fifty-four thousand, four hundred thirty-one".