1225560635 has 16 divisors (see below), whose sum is σ = 1652664384. Its totient is φ = 865679232.

The previous prime is 1225560601. The next prime is 1225560647. The reversal of 1225560635 is 5360655221.

It is a cyclic number.

It is not a de Polignac number, because 1225560635 - 2⁶ = 1225560571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1225560595 and 1225560604.

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 15 ways as a sum of consecutive naturals, for example, 408392 + ... + 411381.

It is an arithmetic number, because the mean of its divisors is an integer number (103291524).

Almost surely, 2^1225560635 is an apocalyptic number.

1225560635 is a deficient number, since it is larger than the sum of its proper divisors (427103749).

1225560635 is a wasteful number, since it uses less digits than its factorization.

1225560635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819814.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 1225560635 is about 35008.0081552778. The cubic root of 1225560635 is about 1070.1506862635.

The spelling of 1225560635 in words is "one billion, two hundred twenty-five million, five hundred sixty thousand, six hundred thirty-five".