50421663 has 8 divisors (see below), whose sum is σ = 74698800. Its totient is φ = 33614424.

The previous prime is 50421661. The next prime is 50421673. The reversal of 50421663 is 36612405.

It is not a de Polignac number, because 50421663 - 2¹ = 50421661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1867469 = 50421663 / (5 + 0 + 4 + 2 + 1 + 6 + 6 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50421661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933708 + ... + 933761.

It is an arithmetic number, because the mean of its divisors is an integer number (9337350).

Almost surely, 2^50421663 is an apocalyptic number.

50421663 is a deficient number, since it is larger than the sum of its proper divisors (24277137).

50421663 is a wasteful number, since it uses less digits than its factorization.

50421663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867478 (or 1867472 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 50421663 is about 7100.8212905269. The cubic root of 50421663 is about 369.4358654113.

The spelling of 50421663 in words is "fifty million, four hundred twenty-one thousand, six hundred sixty-three".