49278049 has 2 divisors, whose sum is σ = 49278050. Its totient is φ = 49278048.

The previous prime is 49278041. The next prime is 49278059. The reversal of 49278049 is 94087294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46240000 + 3038049 = 6800^2 + 1743^2 .

It is a cyclic number.

It is not a de Polignac number, because 49278049 - 2³ = 49278041 is a prime.

It is a super-2 number, since 2×49278049² = 4856652226492802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49277996 and 49278014.

It is not a weakly prime, because it can be changed into another prime (49278041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24639024 + 24639025.

It is an arithmetic number, because the mean of its divisors is an integer number (24639025).

Almost surely, 2^49278049 is an apocalyptic number.

It is an amenable number.

49278049 is a deficient number, since it is larger than the sum of its proper divisors (1).

49278049 is an equidigital number, since it uses as much as digits as its factorization.

49278049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 49278049 is about 7019.8325478604. The cubic root of 49278049 is about 366.6214198529.

The spelling of 49278049 in words is "forty-nine million, two hundred seventy-eight thousand, forty-nine".