1225416653 has 4 divisors (see below), whose sum is σ = 1258536060. Its totient is φ = 1192297248.

The previous prime is 1225416649. The next prime is 1225416671. The reversal of 1225416653 is 3566145221.

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 534673129 + 690743524 = 23123^2 + 26282^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225416653 - 2² = 1225416649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225416613) 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, 16559648 + ... + 16559721.

It is an arithmetic number, because the mean of its divisors is an integer number (314634015).

Almost surely, 2^1225416653 is an apocalyptic number.

It is an amenable number.

1225416653 is a deficient number, since it is larger than the sum of its proper divisors (33119407).

1225416653 is an equidigital number, since it uses as much as digits as its factorization.

1225416653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33119406.

The product of its digits is 43200, while the sum is 35.

The square root of 1225416653 is about 35005.9516796787. The cubic root of 1225416653 is about 1070.1087766084.

The spelling of 1225416653 in words is "one billion, two hundred twenty-five million, four hundred sixteen thousand, six hundred fifty-three".