49975517 has 2 divisors, whose sum is σ = 49975518. Its totient is φ = 49975516.

The previous prime is 49975511. The next prime is 49975553. The reversal of 49975517 is 71557994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25512601 + 24462916 = 5051^2 + 4946^2 .

It is a cyclic number.

It is not a de Polignac number, because 49975517 - 2¹⁰ = 49974493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49975511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24987758 + 24987759.

It is an arithmetic number, because the mean of its divisors is an integer number (24987759).

Almost surely, 2^49975517 is an apocalyptic number.

It is an amenable number.

49975517 is a deficient number, since it is larger than the sum of its proper divisors (1).

49975517 is an equidigital number, since it uses as much as digits as its factorization.

49975517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 47.

The square root of 49975517 is about 7069.3363903552. The cubic root of 49975517 is about 368.3430092847.

The spelling of 49975517 in words is "forty-nine million, nine hundred seventy-five thousand, five hundred seventeen".