1225054554 has 8 divisors (see below), whose sum is σ = 2450109120. Its totient is φ = 408351516.

The previous prime is 1225054529. The next prime is 1225054591. The reversal of 1225054554 is 4554505221.

It is a sphenic number, since it is the product of 3 distinct primes.

1225054554 is an admirable number.

It is a super-2 number, since 2×1225054554² = 3001517320552277832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102087874 + ... + 102087885.

It is an arithmetic number, because the mean of its divisors is an integer number (306263640).

Almost surely, 2^1225054554 is an apocalyptic number.

1225054554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225054554 is a wasteful number, since it uses less digits than its factorization.

1225054554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204175764.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 1225054554 is about 35000.7793341805. The cubic root of 1225054554 is about 1070.0033638931.

Adding to 1225054554 its reverse (4554505221), we get a palindrome (5779559775).

The spelling of 1225054554 in words is "one billion, two hundred twenty-five million, fifty-four thousand, five hundred fifty-four".