49549499957 has 2 divisors, whose sum is σ = 49549499958. Its totient is φ = 49549499956.

The previous prime is 49549499927. The next prime is 49549499981. The reversal of 49549499957 is 75999494594.

49549499957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34354993201 + 15194506756 = 185351^2 + 123266^2 .

It is a cyclic number.

It is not a de Polignac number, because 49549499957 - 2¹⁴ = 49549483573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49549499917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24774749978 + 24774749979.

It is an arithmetic number, because the mean of its divisors is an integer number (24774749979).

Almost surely, 2^49549499957 is an apocalyptic number.

It is an amenable number.

49549499957 is a deficient number, since it is larger than the sum of its proper divisors (1).

49549499957 is an equidigital number, since it uses as much as digits as its factorization.

49549499957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 661348800, while the sum is 74.

The spelling of 49549499957 in words is "forty-nine billion, five hundred forty-nine million, four hundred ninety-nine thousand, nine hundred fifty-seven".