1225717559 has 16 divisors (see below), whose sum is σ = 1367815680. Its totient is φ = 1088808960.

The previous prime is 1225717547. The next prime is 1225717579. The reversal of 1225717559 is 9557175221.

It is a cyclic number.

It is not a de Polignac number, because 1225717559 - 2⁴ = 1225717543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225717579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396032 + ... + 399114.

It is an arithmetic number, because the mean of its divisors is an integer number (85488480).

Almost surely, 2^1225717559 is an apocalyptic number.

1225717559 is a deficient number, since it is larger than the sum of its proper divisors (142098121).

1225717559 is a wasteful number, since it uses less digits than its factorization.

1225717559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910.

The product of its digits is 220500, while the sum is 44.

The square root of 1225717559 is about 35010.2493421569. The cubic root of 1225717559 is about 1070.1963592816.

The spelling of 1225717559 in words is "one billion, two hundred twenty-five million, seven hundred seventeen thousand, five hundred fifty-nine".