49263649 has 2 divisors, whose sum is σ = 49263650. Its totient is φ = 49263648.

The previous prime is 49263629. The next prime is 49263667. The reversal of 49263649 is 94636294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37601424 + 11662225 = 6132^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 49263649 - 2¹¹ = 49261601 is a prime.

It is a super-2 number, since 2×49263649² = 4853814225590402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49263629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24631824 + 24631825.

It is an arithmetic number, because the mean of its divisors is an integer number (24631825).

Almost surely, 2^49263649 is an apocalyptic number.

It is an amenable number.

49263649 is a deficient number, since it is larger than the sum of its proper divisors (1).

49263649 is an equidigital number, since it uses as much as digits as its factorization.

49263649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 43.

The square root of 49263649 is about 7018.8068074282. The cubic root of 49263649 is about 366.5857050815.

The spelling of 49263649 in words is "forty-nine million, two hundred sixty-three thousand, six hundred forty-nine".