225624937 has 2 divisors, whose sum is σ = 225624938. Its totient is φ = 225624936.

The previous prime is 225624929. The next prime is 225624947. The reversal of 225624937 is 739426522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217238121 + 8386816 = 14739^2 + 2896^2 .

It is a cyclic number.

It is not a de Polignac number, because 225624937 - 2³ = 225624929 is a prime.

It is a super-2 number, since 2×225624937² = 101813224392507938, 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 225624937.

It is not a weakly prime, because it can be changed into another prime (225624947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112812468 + 112812469.

It is an arithmetic number, because the mean of its divisors is an integer number (112812469).

Almost surely, 2^225624937 is an apocalyptic number.

It is an amenable number.

225624937 is a deficient number, since it is larger than the sum of its proper divisors (1).

225624937 is an equidigital number, since it uses as much as digits as its factorization.

225624937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 225624937 is about 15020.8167887103. The cubic root of 225624937 is about 608.7827890989.

It can be divided in two parts, 22562493 and 7, that added together give a square (22562500 = 4750²).

The spelling of 225624937 in words is "two hundred twenty-five million, six hundred twenty-four thousand, nine hundred thirty-seven".