50473921 has 4 divisors (see below), whose sum is σ = 52102144. Its totient is φ = 48845700.

The previous prime is 50473909. The next prime is 50473963. The reversal of 50473921 is 12937405.

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 50473921 - 2⁵ = 50473889 is a prime.

It is a super-2 number, since 2×50473921² = 5095233402228482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1628191 = 50473921 / (5 + 0 + 4 + 7 + 3 + 9 + 2 + 1).

It is the 7105-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50473321) by changing a digit.

It is a nontrivial repunit in base 7104.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814065 + ... + 814126.

It is an arithmetic number, because the mean of its divisors is an integer number (13025536).

Almost surely, 2^50473921 is an apocalyptic number.

It is an amenable number.

50473921 is a deficient number, since it is larger than the sum of its proper divisors (1628223).

50473921 is a wasteful number, since it uses less digits than its factorization.

50473921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628222.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 50473921 is about 7104.5000527834. The cubic root of 50473921 is about 369.5634515350.

The spelling of 50473921 in words is "fifty million, four hundred seventy-three thousand, nine hundred twenty-one".