50720551 has 8 divisors (see below), whose sum is σ = 58390560. Its totient is φ = 43156608.

The previous prime is 50720539. The next prime is 50720561. The reversal of 50720551 is 15502705.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50720551 is a prime.

It is a super-3 number, since 3×50720551³ (a number of 24 digits) contains 333 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 (50720561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25486 + ... + 27403.

It is an arithmetic number, because the mean of its divisors is an integer number (7298820).

Almost surely, 2^50720551 is an apocalyptic number.

50720551 is a deficient number, since it is larger than the sum of its proper divisors (7670009).

50720551 is a wasteful number, since it uses less digits than its factorization.

50720551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53033.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 50720551 is about 7121.8362098549. The cubic root of 50720551 is about 370.1644046591.

The spelling of 50720551 in words is "fifty million, seven hundred twenty thousand, five hundred fifty-one".