49191573 has 4 divisors (see below), whose sum is σ = 65588768. Its totient is φ = 32794380.

The previous prime is 49191529. The next prime is 49191577. The reversal of 49191573 is 37519194.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49191573 - 2⁹ = 49191061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49191577) 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, 8198593 + ... + 8198598.

It is an arithmetic number, because the mean of its divisors is an integer number (16397192).

Almost surely, 2^49191573 is an apocalyptic number.

It is an amenable number.

49191573 is a deficient number, since it is larger than the sum of its proper divisors (16397195).

49191573 is a wasteful number, since it uses less digits than its factorization.

49191573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16397194.

The product of its digits is 34020, while the sum is 39.

The square root of 49191573 is about 7013.6704370821. The cubic root of 49191573 is about 366.4068380532.

The spelling of 49191573 in words is "forty-nine million, one hundred ninety-one thousand, five hundred seventy-three".