49722993 has 6 divisors (see below), whose sum is σ = 71822114. Its totient is φ = 33148656.

The previous prime is 49722989. The next prime is 49723013. The reversal of 49722993 is 39922794.

It can be written as a sum of positive squares in only one way, i.e., 26132544 + 23590449 = 5112^2 + 4857^2 .

It is not a de Polignac number, because 49722993 - 2² = 49722989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49722923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2762380 + ... + 2762397.

Almost surely, 2^49722993 is an apocalyptic number.

It is an amenable number.

49722993 is a deficient number, since it is larger than the sum of its proper divisors (22099121).

49722993 is a wasteful number, since it uses less digits than its factorization.

49722993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524783 (or 5524780 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 49722993 is about 7051.4532544717. The cubic root of 49722993 is about 367.7215545901.

The spelling of 49722993 in words is "forty-nine million, seven hundred twenty-two thousand, nine hundred ninety-three".