425108919 has 16 divisors (see below), whose sum is σ = 611481312. Its totient is φ = 261700608.

The previous prime is 425108917. The next prime is 425108933. The reversal of 425108919 is 919801524.

It is not a de Polignac number, because 425108919 - 2¹ = 425108917 is a prime.

It is a super-2 number, since 2×425108919² = 361435186026697122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425108917) 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 in 15 ways as a sum of consecutive naturals, for example, 75934 + ... + 81339.

It is an arithmetic number, because the mean of its divisors is an integer number (38217582).

Almost surely, 2^425108919 is an apocalyptic number.

425108919 is a deficient number, since it is larger than the sum of its proper divisors (186372393).

425108919 is a wasteful number, since it uses less digits than its factorization.

425108919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157346.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 425108919 is about 20618.1696326323. The cubic root of 425108919 is about 751.9115204250.

The spelling of 425108919 in words is "four hundred twenty-five million, one hundred eight thousand, nine hundred nineteen".