49493909057 has 2 divisors, whose sum is σ = 49493909058. Its totient is φ = 49493909056.

The previous prime is 49493909053. The next prime is 49493909119. The reversal of 49493909057 is 75090939494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48721291441 + 772617616 = 220729^2 + 27796^2 .

It is a cyclic number.

It is not a de Polignac number, because 49493909057 - 2² = 49493909053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49493908987 and 49493909005.

It is not a weakly prime, because it can be changed into another prime (49493909053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24746954528 + 24746954529.

It is an arithmetic number, because the mean of its divisors is an integer number (24746954529).

Almost surely, 2^49493909057 is an apocalyptic number.

It is an amenable number.

49493909057 is a deficient number, since it is larger than the sum of its proper divisors (1).

49493909057 is an equidigital number, since it uses as much as digits as its factorization.

49493909057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 59.

The spelling of 49493909057 in words is "forty-nine billion, four hundred ninety-three million, nine hundred nine thousand, fifty-seven".