50805451 has 4 divisors (see below), whose sum is σ = 51016504. Its totient is φ = 50594400.

The previous prime is 50805407. The next prime is 50805457. The reversal of 50805451 is 15450805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15450805 = 5 ⋅3090161.

It is a cyclic number.

It is not a de Polignac number, because 50805451 - 2¹³ = 50797259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50805457) 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, 105165 + ... + 105646.

It is an arithmetic number, because the mean of its divisors is an integer number (12754126).

Almost surely, 2^50805451 is an apocalyptic number.

50805451 is a deficient number, since it is larger than the sum of its proper divisors (211053).

50805451 is a wasteful number, since it uses less digits than its factorization.

50805451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211052.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 50805451 is about 7127.7942590959. The cubic root of 50805451 is about 370.3708261764.

The spelling of 50805451 in words is "fifty million, eight hundred five thousand, four hundred fifty-one".