425551231 has 12 divisors (see below), whose sum is σ = 495965208. Its totient is φ = 364068432.

The previous prime is 425551223. The next prime is 425551241. The reversal of 425551231 is 132155524.

It is not a de Polignac number, because 425551231 - 2³ = 425551223 is a prime.

It is a super-2 number, since 2×425551231² = 362187700411230722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425551231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425551241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18865 + ... + 34741.

It is an arithmetic number, because the mean of its divisors is an integer number (41330434).

Almost surely, 2^425551231 is an apocalyptic number.

425551231 is a deficient number, since it is larger than the sum of its proper divisors (70413977).

425551231 is a wasteful number, since it uses less digits than its factorization.

425551231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16438 (or 16431 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 425551231 is about 20628.8931113620. The cubic root of 425551231 is about 752.1722098579.

The spelling of 425551231 in words is "four hundred twenty-five million, five hundred fifty-one thousand, two hundred thirty-one".