224856551 has 2 divisors, whose sum is σ = 224856552. Its totient is φ = 224856550.

The previous prime is 224856523. The next prime is 224856563. The reversal of 224856551 is 155658422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224856551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224858551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112428275 + 112428276.

It is an arithmetic number, because the mean of its divisors is an integer number (112428276).

Almost surely, 2^224856551 is an apocalyptic number.

224856551 is a deficient number, since it is larger than the sum of its proper divisors (1).

224856551 is an equidigital number, since it uses as much as digits as its factorization.

224856551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96000, while the sum is 38.

The square root of 224856551 is about 14995.2176042897. The cubic root of 224856551 is about 608.0909149236.

The spelling of 224856551 in words is "two hundred twenty-four million, eight hundred fifty-six thousand, five hundred fifty-one".