423255226251 has 16 divisors (see below), whose sum is σ = 663001194240. Its totient is φ = 236786140320.

The previous prime is 423255226249. The next prime is 423255226279. The reversal of 423255226251 is 152622552324.

It is not a de Polignac number, because 423255226251 - 2¹ = 423255226249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (423255226201) 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, 493304031 + ... + 493304888.

It is an arithmetic number, because the mean of its divisors is an integer number (41437574640).

Almost surely, 2^423255226251 is an apocalyptic number.

423255226251 is a deficient number, since it is larger than the sum of its proper divisors (239745967989).

423255226251 is a wasteful number, since it uses less digits than its factorization.

423255226251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986608946.

The product of its digits is 288000, while the sum is 39.

Adding to 423255226251 its reverse (152622552324), we get a palindrome (575877778575).

The spelling of 423255226251 in words is "four hundred twenty-three billion, two hundred fifty-five million, two hundred twenty-six thousand, two hundred fifty-one".