47225237 has 2 divisors, whose sum is σ = 47225238. Its totient is φ = 47225236.

The previous prime is 47225221. The next prime is 47225239. The reversal of 47225237 is 73252274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27520516 + 19704721 = 5246^2 + 4439^2 .

It is a cyclic number.

It is not a de Polignac number, because 47225237 - 2⁴ = 47225221 is a prime.

Together with 47225239, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47225239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23612618 + 23612619.

It is an arithmetic number, because the mean of its divisors is an integer number (23612619).

Almost surely, 2^47225237 is an apocalyptic number.

It is an amenable number.

47225237 is a deficient number, since it is larger than the sum of its proper divisors (1).

47225237 is an equidigital number, since it uses as much as digits as its factorization.

47225237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 32.

The square root of 47225237 is about 6872.0620631656. The cubic root of 47225237 is about 361.4581726611.

The spelling of 47225237 in words is "forty-seven million, two hundred twenty-five thousand, two hundred thirty-seven".