225611619 has 32 divisors (see below), whose sum is σ = 320604480. Its totient is φ = 140894208.

The previous prime is 225611593. The next prime is 225611627. The reversal of 225611619 is 916116522.

It is not a de Polignac number, because 225611619 - 2⁸ = 225611363 is a prime.

It is a super-2 number, since 2×225611619² = 101801205255602322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225611619.

It is not an unprimeable number, because it can be changed into a prime (225611699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520827 + ... + 521259.

It is an arithmetic number, because the mean of its divisors is an integer number (10018890).

Almost surely, 2^225611619 is an apocalyptic number.

225611619 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

225611619 is a deficient number, since it is larger than the sum of its proper divisors (94992861).

225611619 is a wasteful number, since it uses less digits than its factorization.

225611619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631.

The product of its digits is 6480, while the sum is 33.

The square root of 225611619 is about 15020.3734640654. The cubic root of 225611619 is about 608.7708106228.

The spelling of 225611619 in words is "two hundred twenty-five million, six hundred eleven thousand, six hundred nineteen".