50499021 has 4 divisors (see below), whose sum is σ = 67332032. Its totient is φ = 33666012.

The previous prime is 50499011. The next prime is 50499037. The reversal of 50499021 is 12099405.

It is a happy number.

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 50499021 - 2⁵ = 50498989 is a prime.

It is a super-2 number, since 2×50499021² = 5100302243916882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50499021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50499011) 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, 8416501 + ... + 8416506.

It is an arithmetic number, because the mean of its divisors is an integer number (16833008).

Almost surely, 2^50499021 is an apocalyptic number.

It is an amenable number.

50499021 is a deficient number, since it is larger than the sum of its proper divisors (16833011).

50499021 is a wasteful number, since it uses less digits than its factorization.

50499021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16833010.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 50499021 is about 7106.2663192425. The cubic root of 50499021 is about 369.6247010229.

The spelling of 50499021 in words is "fifty million, four hundred ninety-nine thousand, twenty-one".