49720193 has 4 divisors (see below), whose sum is σ = 51064020. Its totient is φ = 48376368.

The previous prime is 49720183. The next prime is 49720211. The reversal of 49720193 is 39102794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40857664 + 8862529 = 6392^2 + 2977^2 .

It is a cyclic number.

It is not a de Polignac number, because 49720193 - 2²² = 45525889 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 (49720183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671858 + ... + 671931.

It is an arithmetic number, because the mean of its divisors is an integer number (12766005).

Almost surely, 2^49720193 is an apocalyptic number.

It is an amenable number.

49720193 is a deficient number, since it is larger than the sum of its proper divisors (1343827).

49720193 is a wasteful number, since it uses less digits than its factorization.

49720193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343826.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 49720193 is about 7051.2547110426. The cubic root of 49720193 is about 367.7146520847.

The spelling of 49720193 in words is "forty-nine million, seven hundred twenty thousand, one hundred ninety-three".