1225403554 has 16 divisors (see below), whose sum is σ = 1947002400. Its totient is φ = 576431424.

The previous prime is 1225403549. The next prime is 1225403561. The reversal of 1225403554 is 4553045221.

It is a super-2 number, since 2×1225403554² = 3003227740311661832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105277 + ... + 116335.

It is an arithmetic number, because the mean of its divisors is an integer number (121687650).

Almost surely, 2^1225403554 is an apocalyptic number.

1225403554 is a deficient number, since it is larger than the sum of its proper divisors (721598846).

1225403554 is a wasteful number, since it uses less digits than its factorization.

1225403554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14337.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1225403554 is about 35005.7645824227. The cubic root of 1225403554 is about 1070.1049636455.

Adding to 1225403554 its reverse (4553045221), we get a palindrome (5778448775).

The spelling of 1225403554 in words is "one billion, two hundred twenty-five million, four hundred three thousand, five hundred fifty-four".