49290557 has 2 divisors, whose sum is σ = 49290558. Its totient is φ = 49290556.

The previous prime is 49290539. The next prime is 49290607. The reversal of 49290557 is 75509294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35593156 + 13697401 = 5966^2 + 3701^2 .

It is a cyclic number.

It is not a de Polignac number, because 49290557 - 2¹⁰ = 49289533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49290457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24645278 + 24645279.

It is an arithmetic number, because the mean of its divisors is an integer number (24645279).

Almost surely, 2^49290557 is an apocalyptic number.

It is an amenable number.

49290557 is a deficient number, since it is larger than the sum of its proper divisors (1).

49290557 is an equidigital number, since it uses as much as digits as its factorization.

49290557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 49290557 is about 7020.7233957763. The cubic root of 49290557 is about 366.6524364542.

The spelling of 49290557 in words is "forty-nine million, two hundred ninety thousand, five hundred fifty-seven".