50451621 has 16 divisors (see below), whose sum is σ = 74115648. Its totient is φ = 30272000.

The previous prime is 50451617. The next prime is 50451641. The reversal of 50451621 is 12615405.

It is not a de Polignac number, because 50451621 - 2² = 50451617 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 50451591 and 50451600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50451641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4236 + ... + 10901.

It is an arithmetic number, because the mean of its divisors is an integer number (4632228).

Almost surely, 2^50451621 is an apocalyptic number.

It is an amenable number.

50451621 is a deficient number, since it is larger than the sum of its proper divisors (23664027).

50451621 is a wasteful number, since it uses less digits than its factorization.

50451621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15252.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 50451621 is about 7102.9304515812. The cubic root of 50451621 is about 369.5090176227.

It can be divided in two parts, 5045 and 1621, that added together give a palindrome (6666).

The spelling of 50451621 in words is "fifty million, four hundred fifty-one thousand, six hundred twenty-one".