425212251 has 16 divisors (see below), whose sum is σ = 595820544. Its totient is φ = 269396064.

The previous prime is 425212231. The next prime is 425212253. The reversal of 425212251 is 152212524.

It is not a de Polignac number, because 425212251 - 2⁵ = 425212219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425212253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39771 + ... + 49316.

It is an arithmetic number, because the mean of its divisors is an integer number (37238784).

Almost surely, 2^425212251 is an apocalyptic number.

425212251 is a deficient number, since it is larger than the sum of its proper divisors (170608293).

425212251 is a wasteful number, since it uses less digits than its factorization.

425212251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89170.

The product of its digits is 1600, while the sum is 24.

The square root of 425212251 is about 20620.6753284174. The cubic root of 425212251 is about 751.9724383242.

Adding to 425212251 its reverse (152212524), we get a palindrome (577424775).

The spelling of 425212251 in words is "four hundred twenty-five million, two hundred twelve thousand, two hundred fifty-one".