225123551401 has 4 divisors (see below), whose sum is σ = 257284058752. Its totient is φ = 192963044052.

The previous prime is 225123551383. The next prime is 225123551441. The reversal of 225123551401 is 104155321522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225123551401 - 2⁵ = 225123551369 is a prime.

It is a super-2 number, since 2×225123551401² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225123551441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16080253665 + ... + 16080253678.

It is an arithmetic number, because the mean of its divisors is an integer number (64321014688).

Almost surely, 2^225123551401 is an apocalyptic number.

It is an amenable number.

225123551401 is a deficient number, since it is larger than the sum of its proper divisors (32160507351).

225123551401 is an equidigital number, since it uses as much as digits as its factorization.

225123551401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32160507350.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 225123551401 its reverse (104155321522), we get a palindrome (329278872923).

The spelling of 225123551401 in words is "two hundred twenty-five billion, one hundred twenty-three million, five hundred fifty-one thousand, four hundred one".