50729249 has 4 divisors (see below), whose sum is σ = 50827140. Its totient is φ = 50631360.

The previous prime is 50729243. The next prime is 50729269. The reversal of 50729249 is 94292705.

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 38254225 + 12475024 = 6185^2 + 3532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50729249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50729243) 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, 48164 + ... + 49205.

It is an arithmetic number, because the mean of its divisors is an integer number (12706785).

Almost surely, 2^50729249 is an apocalyptic number.

It is an amenable number.

50729249 is a deficient number, since it is larger than the sum of its proper divisors (97891).

50729249 is an equidigital number, since it uses as much as digits as its factorization.

50729249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97890.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 50729249 is about 7122.4468407985. The cubic root of 50729249 is about 370.1855631172.

The spelling of 50729249 in words is "fifty million, seven hundred twenty-nine thousand, two hundred forty-nine".