224040551 has 4 divisors (see below), whose sum is σ = 256046352. Its totient is φ = 192034752.

The previous prime is 224040541. The next prime is 224040581. The reversal of 224040551 is 155040422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155040422 = 2 ⋅77520211.

It is not a de Polignac number, because 224040551 - 2²² = 219846247 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 (224040511) 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, 16002890 + ... + 16002903.

It is an arithmetic number, because the mean of its divisors is an integer number (64011588).

Almost surely, 2^224040551 is an apocalyptic number.

224040551 is a deficient number, since it is larger than the sum of its proper divisors (32005801).

224040551 is an equidigital number, since it uses as much as digits as its factorization.

224040551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32005800.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 224040551 is about 14967.9841996175. The cubic root of 224040551 is about 607.3544399970.

Adding to 224040551 its reverse (155040422), we get a palindrome (379080973).

The spelling of 224040551 in words is "two hundred twenty-four million, forty thousand, five hundred fifty-one".