49999257 has 54 divisors (see below), whose sum is σ = 92442714. Its totient is φ = 25945920.

The previous prime is 49999253. The next prime is 49999267. The reversal of 49999257 is 75299994.

It can be written as a sum of positive squares in only one way, i.e., 30735936 + 19263321 = 5544^2 + 4389^2 .

It is not a de Polignac number, because 49999257 - 2² = 49999253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49999253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 52893 + ... + 53829.

Almost surely, 2^49999257 is an apocalyptic number.

It is an amenable number.

49999257 is a deficient number, since it is larger than the sum of its proper divisors (42443457).

49999257 is a wasteful number, since it uses less digits than its factorization.

49999257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 958 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 49999257 is about 7071.0152736365. The cubic root of 49999257 is about 368.4013250314.

The spelling of 49999257 in words is "forty-nine million, nine hundred ninety-nine thousand, two hundred fifty-seven".