50724991 has 6 divisors (see below), whose sum is σ = 53884640. Its totient is φ = 47740896.

The previous prime is 50724983. The next prime is 50725009. The reversal of 50724991 is 19942705.

It is not a de Polignac number, because 50724991 - 2³ = 50724983 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 50724991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50724911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87471 + ... + 88048.

Almost surely, 2^50724991 is an apocalyptic number.

50724991 is a deficient number, since it is larger than the sum of its proper divisors (3159649).

50724991 is a wasteful number, since it uses less digits than its factorization.

50724991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175553 (or 175536 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 50724991 is about 7122.1479203959. The cubic root of 50724991 is about 370.1752055539.

It can be divided in two parts, 50724 and 991, that added together give a palindrome (51715).

The spelling of 50724991 in words is "fifty million, seven hundred twenty-four thousand, nine hundred ninety-one".