50436864 has 72 divisors (see below), whose sum is σ = 149171120. Its totient is φ = 16809984.

The previous prime is 50436857. The next prime is 50436877. The reversal of 50436864 is 46863405.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3264 + ... + 10560.

Almost surely, 2^50436864 is an apocalyptic number.

50436864 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50436864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74585560).

50436864 is an abundant number, since it is smaller than the sum of its proper divisors (98734256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50436864 is an equidigital number, since it uses as much as digits as its factorization.

50436864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322 (or 7302 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 50436864 is about 7101.8915790091. The cubic root of 50436864 is about 369.4729872224.

The spelling of 50436864 in words is "fifty million, four hundred thirty-six thousand, eight hundred sixty-four".