49517973 has 10 divisors (see below), whose sum is σ = 73971414. Its totient is φ = 33011928.

The previous prime is 49517969. The next prime is 49517981. The reversal of 49517973 is 37971594.

49517973 is a `hidden beast` number, since 49 + 517 + 97 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36687249 + 12830724 = 6057^2 + 3582^2 .

It is not a de Polignac number, because 49517973 - 2² = 49517969 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49517773) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 305586 + ... + 305747.

Almost surely, 2^49517973 is an apocalyptic number.

It is an amenable number.

49517973 is a deficient number, since it is larger than the sum of its proper divisors (24453441).

49517973 is an equidigital number, since it uses as much as digits as its factorization.

49517973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611345 (or 611336 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 49517973 is about 7036.9008093052. The cubic root of 49517973 is about 367.2154565453.

The spelling of 49517973 in words is "forty-nine million, five hundred seventeen thousand, nine hundred seventy-three".