50720549 has 4 divisors (see below), whose sum is σ = 55331520. Its totient is φ = 46109580.

The previous prime is 50720539. The next prime is 50720561. The reversal of 50720549 is 94502705.

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 50720549 - 2⁴ = 50720533 is a prime.

It is a super-2 number, since 2×50720549² = 5145148181722802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50720539) 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, 2305469 + ... + 2305490.

It is an arithmetic number, because the mean of its divisors is an integer number (13832880).

Almost surely, 2^50720549 is an apocalyptic number.

It is an amenable number.

50720549 is a deficient number, since it is larger than the sum of its proper divisors (4610971).

50720549 is a wasteful number, since it uses less digits than its factorization.

50720549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610970.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 50720549 is about 7121.8360694416. The cubic root of 50720549 is about 370.1643997937.

The spelling of 50720549 in words is "fifty million, seven hundred twenty thousand, five hundred forty-nine".