425144523 has 4 divisors (see below), whose sum is σ = 566859368. Its totient is φ = 283429680.

The previous prime is 425144519. The next prime is 425144549. The reversal of 425144523 is 325441524.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 425144523 - 2² = 425144519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425144623) 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, 70857418 + ... + 70857423.

It is an arithmetic number, because the mean of its divisors is an integer number (141714842).

Almost surely, 2^425144523 is an apocalyptic number.

425144523 is a deficient number, since it is larger than the sum of its proper divisors (141714845).

425144523 is a wasteful number, since it uses less digits than its factorization.

425144523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141714844.

The product of its digits is 19200, while the sum is 30.

The square root of 425144523 is about 20619.0330277635. The cubic root of 425144523 is about 751.9325113674.

The spelling of 425144523 in words is "four hundred twenty-five million, one hundred forty-four thousand, five hundred twenty-three".