49165657 has 2 divisors, whose sum is σ = 49165658. Its totient is φ = 49165656.

The previous prime is 49165621. The next prime is 49165663. The reversal of 49165657 is 75656194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44408896 + 4756761 = 6664^2 + 2181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49165657 is a prime.

It is not a weakly prime, because it can be changed into another prime (49165607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24582828 + 24582829.

It is an arithmetic number, because the mean of its divisors is an integer number (24582829).

Almost surely, 2^49165657 is an apocalyptic number.

It is an amenable number.

49165657 is a deficient number, since it is larger than the sum of its proper divisors (1).

49165657 is an equidigital number, since it uses as much as digits as its factorization.

49165657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 43.

The square root of 49165657 is about 7011.8226589097. The cubic root of 49165657 is about 366.3424810431.

The spelling of 49165657 in words is "forty-nine million, one hundred sixty-five thousand, six hundred fifty-seven".