425854939 has 2 divisors, whose sum is σ = 425854940. Its totient is φ = 425854938.

The previous prime is 425854901. The next prime is 425854973. The reversal of 425854939 is 939458524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425854939 - 2¹¹ = 425852891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 425854892 and 425854901.

It is not a weakly prime, because it can be changed into another prime (425834939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212927469 + 212927470.

It is an arithmetic number, because the mean of its divisors is an integer number (212927470).

Almost surely, 2^425854939 is an apocalyptic number.

425854939 is a deficient number, since it is larger than the sum of its proper divisors (1).

425854939 is an equidigital number, since it uses as much as digits as its factorization.

425854939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The square root of 425854939 is about 20636.2530271365. The cubic root of 425854939 is about 752.3511044130.

It can be divided in two parts, 42585 and 4939, that added together give a square (47524 = 218²).

The spelling of 425854939 in words is "four hundred twenty-five million, eight hundred fifty-four thousand, nine hundred thirty-nine".