225251223555 has 16 divisors (see below), whose sum is σ = 363032632224. Its totient is φ = 119257094400.

The previous prime is 225251223539. The next prime is 225251223581. The reversal of 225251223555 is 555322152522.

It is not a de Polignac number, because 225251223555 - 2⁴ = 225251223539 is a prime.

It is a super-4 number, since 4×225251223555⁴ (a number of 47 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54803596 + ... + 54807705.

It is an arithmetic number, because the mean of its divisors is an integer number (22689539514).

Almost surely, 2^225251223555 is an apocalyptic number.

225251223555 is a deficient number, since it is larger than the sum of its proper divisors (137781408669).

225251223555 is a wasteful number, since it uses less digits than its factorization.

225251223555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109611446.

The product of its digits is 300000, while the sum is 39.

The spelling of 225251223555 in words is "two hundred twenty-five billion, two hundred fifty-one million, two hundred twenty-three thousand, five hundred fifty-five".