50298721 has 4 divisors (see below), whose sum is σ = 54871344. Its totient is φ = 45726100.

The previous prime is 50298697. The next prime is 50298727. The reversal of 50298721 is 12789205.

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 a cyclic number.

It is not a de Polignac number, because 50298721 - 2¹⁵ = 50265953 is a prime.

It is a super-2 number, since 2×50298721² = 5059922668471682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50298727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2286295 + ... + 2286316.

It is an arithmetic number, because the mean of its divisors is an integer number (13717836).

Almost surely, 2^50298721 is an apocalyptic number.

It is an amenable number.

50298721 is a deficient number, since it is larger than the sum of its proper divisors (4572623).

50298721 is a wasteful number, since it uses less digits than its factorization.

50298721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4572622.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 50298721 is about 7092.1591211704. The cubic root of 50298721 is about 369.1353586688.

The spelling of 50298721 in words is "fifty million, two hundred ninety-eight thousand, seven hundred twenty-one".