550400310225 has 24 divisors (see below), whose sum is σ = 1011105756320. Its totient is φ = 293546831760.

The previous prime is 550400310223. The next prime is 550400310241. The reversal of 550400310225 is 522013004055.

It is a happy number.

550400310225 is a `hidden beast` number, since 5 + 5 + 0 + 400 + 31 + 0 + 225 = 666.

It is not a de Polignac number, because 550400310225 - 2¹ = 550400310223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (550400310223) 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 23 ways as a sum of consecutive naturals, for example, 407703259 + ... + 407704608.

Almost surely, 2^550400310225 is an apocalyptic number.

It is an amenable number.

550400310225 is a deficient number, since it is larger than the sum of its proper divisors (460705446095).

550400310225 is a wasteful number, since it uses less digits than its factorization.

550400310225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815407886 (or 815407875 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 550400310225 in words is "five hundred fifty billion, four hundred million, three hundred ten thousand, two hundred twenty-five".