403225251 has 32 divisors (see below), whose sum is σ = 653425920. Its totient is φ = 217795200.

The previous prime is 403225247. The next prime is 403225271. The reversal of 403225251 is 152522304.

It is not a de Polignac number, because 403225251 - 2² = 403225247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (403225211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3765 + ... + 28646.

It is an arithmetic number, because the mean of its divisors is an integer number (20419560).

Almost surely, 2^403225251 is an apocalyptic number.

403225251 is a deficient number, since it is larger than the sum of its proper divisors (250200669).

403225251 is a wasteful number, since it uses less digits than its factorization.

403225251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32467.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 403225251 is about 20080.4693919241. The cubic root of 403225251 is about 738.7813219618.

Adding to 403225251 its reverse (152522304), we get a palindrome (555747555).

The spelling of 403225251 in words is "four hundred three million, two hundred twenty-five thousand, two hundred fifty-one".