1225582417 has 4 divisors (see below), whose sum is σ = 1225998180. Its totient is φ = 1225166656.

The previous prime is 1225582381. The next prime is 1225582429. The reversal of 1225582417 is 7142855221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20034576 + 1205547841 = 4476^2 + 34721^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225582417 - 2¹⁵ = 1225549649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225582447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203428 + ... + 209365.

It is an arithmetic number, because the mean of its divisors is an integer number (306499545).

Almost surely, 2^1225582417 is an apocalyptic number.

It is an amenable number.

1225582417 is a deficient number, since it is larger than the sum of its proper divisors (415763).

1225582417 is an equidigital number, since it uses as much as digits as its factorization.

1225582417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415762.

The product of its digits is 44800, while the sum is 37.

The square root of 1225582417 is about 35008.3192541430. The cubic root of 1225582417 is about 1070.1570261876.

The spelling of 1225582417 in words is "one billion, two hundred twenty-five million, five hundred eighty-two thousand, four hundred seventeen".