49217249 has 2 divisors, whose sum is σ = 49217250. Its totient is φ = 49217248.

The previous prime is 49217219. The next prime is 49217291. The reversal of 49217249 is 94271294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 664225 = 6968^2 + 815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49217249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49217219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24608624 + 24608625.

It is an arithmetic number, because the mean of its divisors is an integer number (24608625).

Almost surely, 2^49217249 is an apocalyptic number.

It is an amenable number.

49217249 is a deficient number, since it is larger than the sum of its proper divisors (1).

49217249 is an equidigital number, since it uses as much as digits as its factorization.

49217249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 49217249 is about 7015.5006236191. The cubic root of 49217249 is about 366.4705767862.

The spelling of 49217249 in words is "forty-nine million, two hundred seventeen thousand, two hundred forty-nine".