55554225 has 24 divisors (see below), whose sum is σ = 93363072. Its totient is φ = 29140800.

The previous prime is 55554217. The next prime is 55554251. The reversal of 55554225 is 52245555.

It is not a de Polignac number, because 55554225 - 2³ = 55554217 is a prime.

It is a super-3 number, since 3×55554225³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1497 + ... + 10646.

It is an arithmetic number, because the mean of its divisors is an integer number (3890128).

Almost surely, 2^55554225 is an apocalyptic number.

It is an amenable number.

55554225 is a deficient number, since it is larger than the sum of its proper divisors (37808847).

55554225 is a wasteful number, since it uses less digits than its factorization.

55554225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12217 (or 12212 counting only the distinct ones).

The product of its digits is 50000, while the sum is 33.

The square root of 55554225 is about 7453.4706680848. The cubic root of 55554225 is about 381.5683679483.

The spelling of 55554225 in words is "fifty-five million, five hundred fifty-four thousand, two hundred twenty-five".