226125521 has 2 divisors, whose sum is σ = 226125522. Its totient is φ = 226125520.

The previous prime is 226125511. The next prime is 226125533. The reversal of 226125521 is 125521622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204633025 + 21492496 = 14305^2 + 4636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226125521 is a prime.

It is a super-2 number, since 2×226125521² = 102265502495042882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (226125511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113062760 + 113062761.

It is an arithmetic number, because the mean of its divisors is an integer number (113062761).

Almost surely, 2^226125521 is an apocalyptic number.

It is an amenable number.

226125521 is a deficient number, since it is larger than the sum of its proper divisors (1).

226125521 is an equidigital number, since it uses as much as digits as its factorization.

226125521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 226125521 is about 15037.4705652247. The cubic root of 226125521 is about 609.2326829640.

The spelling of 226125521 in words is "two hundred twenty-six million, one hundred twenty-five thousand, five hundred twenty-one".